Panacol introduces new reworkable underfill adhesive
Panacol has developed a new reworkable underfill for consumer electronics. The reworkability and fluorescence despite its black color of the new Structalit® 5751 adhesive allows manufacturers to reduce both manufacturing costs and environmental impact by reusing electronic components mounted on PCBs.
Underfills serve the purpose of equalizing stresses between chip and substrate. Chips are attached directly to the interconnection points without intermediate elements. Stresses arise at the solder bumps when the electronic modules are heated and cooled during operation due to the different coefficients of thermal expansion of the substrates. Underfill technology was developed to counteract these mechanical influences.
Structalit® 5751 is a black, heat-curing, resin-based epoxy adhesive characterized by its low viscosity and linear flow behavior. These properties enable precise application. In addition to classic contact dispensing by means of a dispenser, the uncured properties of Structalit® 5751 also allow contactless dispensing for fast and precise placement of the adhesive. This underfill is has a low ion content and is ideally suited for electronic component packaging.
A typical feature of adhesives on PCBs is their black coloring, which is used to obscure proprietary features and for optical inspection. Optical measurement of an underfill is a common method used in the manufacturing process by manufacturers. But due to the dark chip, shallow layer thickness of the black adhesive and tight gap between the chip and the substrate, optical measurement is often difficult. Panacol has addressed this problem by incorporating an additional yellow shimmering fluorescence to the black coloration of Structalit® 5751. It can be stimulated by short wavelength light of <365nm. This makes it even easier for manufacturers to perform final inspections and speeds up production processes.
In addition to the performance and optical inspection capability of Structalit® 5751, Panacol offers another important property with its newly developed underfill: reworkability. This provides the ability to re-process or repair products after assembly. For manufacturers of electronic components, this challenge is becoming increasingly important as legislation and environmental associations push for the minimization of electronic waste. One starting point of this sustainable strategy is the reworkability and repairability of individual modules on printed circuit boards to counteract the scrapping of a complete component or module.
Structalit® 5751 can be strategically softened at specific adhesion points by applying temperatures above its glass transition temperature range of 150°C. The product becomes reworkable only when this critical temperature threshold is reached. The reworkability temperature does not reduce the protective function of the Structalit® 5751 during typical PCB processing. It withstands temperatures associated with reflow soldering and additional thermal curing cycles.
The current global shortage of chips and general electronic components in the automotive and consumer electronics sectors further highlights the significance of being able to reuse components. Reuse of components is not only a benefit to the environment, it has become essential to sustain current production processes due to supply chain shortages.
Download the technical datasheets:
Underfill Structalit® 5751 seen under normal daylight and yellow fluorescing under uv light.
New epoxies from Panacol-USA cure at 60°C
Panacol has developed a range of new one component epoxy adhesives that cure at very low temperatures. These new adhesives were developed specifically for electronics applications and adhere very well to substrates with low surface energy.
With the adhesives Structalit® 5511, 5521 and 5531, a range of adhesives has been developed that exhibit a unique set of physical properties after reaching full cure. This permits optimizing the adhesive with various component geometries, substrates, and operating functions.
All three adhesives are single-component, epoxy resin-based adhesives and cure at just 60°C, making them particularly suitable for temperature-sensitive electronic components. Curing at higher temperatures will accelerate cure time and add additional strength to the bond.
The Structalit® 5511 adhesive features a particularly low ionic content and is therefore especially suitable for use in electronics. Combining a high Young's modulus with an elongation at break of more than 8%, it ensures high adhesion to many substrates with additional shock and vibration resistance.
Structalit® 5521 is softer and more flexible after curing, allowing the adhesive to better compensate for stresses between substrates. Due to its very low modulus of elasticity, this adhesive is very well suited for potting or for the application of thicker adhesive layers.
As the third adhesive of the new epoxy technology, Structalit® 5531 has an extraordinary low coefficient of thermal expansion (CTE), yet is flexible enough to withstand drop and vibration tests. The incorporation of filler particles gives the adhesive extremely high resistance to mechanical and chemical influences.
These Structalit® adhesives from Panacol generate very high bond strength with materials typically used in the electronics industry. They can also adhere very well to LCP (liquid crystal polymer) and other high-tech plastics with low surface energy. All three adhesives possess high purity and low ion content which complies with international standards for electronic and microelectronic component assembly.
The new Structalit® 5511 is suitable for connector sealing (adhesive shown in light blue in the graphic).
Torrington, CT/25 February 2021
A new range of high-performance adhesives for frame-and-fill applications on printed circuit boards is now available at Panacol-USA.
Frame-and-fill processes are used to protect highly complex areas on electronic circuit boards. In the first step, a highly viscous barrier – the so-called frame – is applied. In the next step, this area is quickly filled with lower viscosity filler material – the fill. With this precise process, areas on the circuit board can be protected from mechanical impact factors. The combination of frame-and-fill materials allows the application of minimum barrier and potting heights and cures to a homogeneous coating. Panacol's new frame-and-fill adhesives are perfectly matched so that the frame and fill areas can be optimally dispensed wet-on-wet without the still-liquid adhesives leading to undesired flowing on the PCB.
The frame material, Structalit® 5704, is a black, thermally curable and single-component epoxy. This frame and glob top compound features excellent bead stability and high glass transition temperature of 150°C up to 190°C, depending on the curing parameters and the layer thicknesses. When using Structalit® 5704, no bleeding effects occur. Due to the very low ion content of less than 20 ppm, Structalit® 5704 is suitable for chip encapsulation on electronic circuit boards.
As a fill material, Panacol has developed a range of adhesives with different rheological properties. The adhesives Structalit® 5717 to Structalit® 5721 are formulated with optimized flow behavior, so that the adhesives can be used on various chip and bonding wire geometries due to the differently adjusted viscosities. Since the fills have the same chemical base as the frame material, the excellent physical and chemical properties of high glass transition range, ion purity, temperature stability and minimal shrinkage behavior are also found in the fillls.
Once cured, Structalit® 5704 and the matching fill of the Structalit® 5717-5721 series form a black, opaque and scratch-resistant coating. These properties together with a temperature resistance of up to 200°C ensure maximum reliability.
A frame of black Structalit® 5704 is filled with a black filler material on a PCB
More information on our new frame and fill adhesives:
suitable in combination with fills Structalit 5717-5722
Very low ion content (<10ppm)
High glass transition temperature
Very good flowability
High glass transition temperature
Very low ionic content (<10ppm)
Suitable for semiconductors
Very good flowability
High glass transition temperature
Very low ionic content (<10ppm)
Suitable for semiconductors
Very good flowability
High glass transition temperature
Very low ionic content (<10ppm)
suitable for semiconductors
Very good flowability
High glass transition temperature
Very low ionic content (<10ppm)
Suitable for semiconductors
Smart system solution for needle bonding
A main field of application for adhesives in medical systems is needle bonding and syringe assembly in high volume production. Optimally matched processes are essential for reliable bonding. Panacol, Hönle and bdtronic partner to ensure that precise adhesive dosing, capillary flow and curing in seconds with UV light work hand in hand.
As the needles are produced in large quantities rapid and reliable bonding is essential. In addition to their mechanical bond strength, the adhesives used must allow high-precision production and permanent joining and must withstand various sterilization methods. Panacol’s UV curable Vitralit® adhesives exactly meet these requirements. Vitralit® adhesives are available in various viscosity ranges to perfectly fit the design of the needle hub and fill the gap between the hub and the needle. The material of the hub and needle also affects the choice of the adhesive: Many adhesives are UV-curing, which requires the use of transparent and UV-permeable materials. For materials that block UV light, such as polycarbonates, long-wave LED curable adhesives are recommended.
All Vitralit® adhesives recommended for needle bonding are solvent-free and certified USP Class VI and/or ISO 10993 for use in medical equipment. In addition, high needle extraction forces were measured with all needle bonding adhesives even after several sterilization cycles. For visual quality inspection, fluorescent versions of our medical grade adhesives are also available.
The choice of the adhesives requires a matching dispensing system for reliable and precise dispensing in a rapid production environment.
The high quality demands required for medical devices, as this needle bonding application, confirms the choice for bdtronic’s volumetric dispensing equipment. With the mini-dis solution provided by bdtronic, dispensing in microliter range is made easy, regardless of the adhesive viscosity. Thanks to the continuous volumetric dispensing, the dispensing is pulsation free ensuring optimal process speed, repeatability and accuracy.
Finally, the choice of the UV curing equipment depends on the adhesive and the wavelength which triggers polymerization. For needle bonding with Vitralit® products you can use either UV-A or visible LED light.
Due to a special LED assembly and an own optimized electric power supply, Hönle LED Powerline LC guarantees a high-intensive irradiation for fastest curing and shortest cycle times. In addition, the irradiation time can be selected in a range of 0.01 – 99.99 sec and thus precisely adapted to the process requirements.
Hönle LED Powerline heads have a compact design for an easy integration into any production line. The high-intensive, water-cooled LED-UV is suitable for clean room operation.
Read more about our needle bonding solutions
The UV adhesive bonding the needles into the needle hubs is being cured under uv light.
Watch "Needle Bonding" video:
New dual-curing potting compound for piezoceramics
Panacol is expanding its portfolio of dual-curing acrylic adhesives with the introduction of Vitralit® UD 8052 F. This material was developed for piezo actuators and sensors. It possesses a particularly high tear resistance for bonding ceramics and plastics.
Vitralit® UD 8052 F is a low viscosity, one-component UV curable adhesive. It is jettable, transparent, and fluoresces under UV light. Customized versions with different colors are available to facilitate improved process control. Its jet dispense capability makes high UPH (units per hour) values achievable, which is why Vitralit® UD 8052 F is the perfect choice for consumer electronics applications.
This potting compound can be cured in just a few seconds with UV light (320nm - 390nm) or visible light (405nm). The fluorescing adhesive allows in-line process control with short-wave light for maximum productivity. In areas that cannot be reached by light, Vitralit® UD 8052 F post cures with atmospheric moisture, and thus polymerizes reliably into a flexible potting and glob top compound.
Its high tear resistance after curing has been optimized for bonding ceramic components to plastic, compensating for the different expansion coefficients of the bonded materials. Thus Vitralit® UD 8052 F is particularly suitable as a protective coating and for applications subject to tensile and compressive stresses. As a potting compound, it features a low halogen content, it is flexible and offers protection against corrosion and other environmental influences.
Read more about adhesive application in electronics
A strand on a piezo actuator protected with fluorescing Vitralit® UD 8052 F
Panacol and Honle develop new system solution for filament winding processes
With the newly developed Vitralit® UD 1405 adhesive, Panacol has created an innovative adhesive system for fibre and filament winding. For high efficiency, Vitralit® UD 1405 adhesive can be applied during the winding process and immediately cured with high intensity LED curing systems from Dr. Hönle AG. This adhesive and curing system is ideal for carbon or glass fibre filament winding associated with Carbon Fibre Reinforced Polymer (CFRP) or Glass Fibre Reinforced Polymer (GFRP) manufacturing processes.
Vitralit® UD 1405 can be used to wrap components such as hybrid rotor shafts for electric motors and high-voltage surge arresters. The adhesive-coated fibre-reinforced windings can be quickly cured with UV/Visible light. This innovative winding process is extremely space and time saving, and can produce significant processing cost savings.
Panacol’s Vitralit® UD 1405 is a transparent, solvent-free, one-component epoxy. Due to its low viscosity, Vitralit® UD 1405 has very good wetting properties. It can be cured in seconds by irradiation with UV (365nm) or Visible (405nm) light wavelengths. Depending on the fibre material and the wavelength used, layer thicknesses of several millimetres can be achieved exclusively by UV/Visible light curing. This epoxy can also be thermally cured after UV exposure to ensure that a complete cure is secured in areas shadowed from the UV light. For example, fibres or filaments can first be pulled through an adhesive bath, then wound onto the rotor or respective cylinder, and cured with UV or visible light. A secondary thermal cure will ensure that the layers of coated windings below the surface become fully cured.
After curing, Vitralit® UD 1405 is electrically insulating, shows minimal shrinkage and remains resistant at temperatures from -40° to 180°C. A glass transition temperature of over 130°C ensures reliable performance even under dynamic load at elevated temperatures.
For the most efficient UV curing system for fibre and filament winding processes, the LED Powerline AC/IC 820 HP from UV specialist Honle is the perfect choice. With intensities of up to 16,000 mW/cm², this LED system ensures very fast curing. Its light emission window is available in two standard sizes, 82 mm x 20 mm and 122 mm x 20 mm, which can be extended without gaps by stringing together multiple modules. When developing the LED Powerline AC/IC 820 HP, special attention was paid to a slim design. This makes it ideal for use where space is at a premium, such as automated winding equipment.
The powerful LED Powerline AC/IC 820 HP can be powered and controlled using the optionally available LED powerdrive IC as a plug&play solution, or by using a customer supplied external power supply and PLC. This makes the LED Powerline an ideal solution for integrating high power LED curing systems into automated assembly processes.
With new epoxy Vitralit® UD 1405 filament windings can be uv cured within seconds
31 August 2020
New UV Adhesive for Decorations and Dome Coatings
UV adhesive Vitralit® UC 6685 was formulated by Panacol specifically for decorations on plastic, glass or metal. Due to its slight magnifying property, the transparent adhesive produces a high-quality image of the structures and illustrations underneath.
Vitralit® UC 6685 is a transparent, UV-curing adhesive based on epoxy resin. Being one-component the adhesive is easy to dispense. Its viscosity makes it suitable for decorative applications on flacons and bottles or for dome coatings, an elegant protective coating for key rings, lapel pins, buttons, name tags, pens and jewelry, for example.
Under UV light in the wavelength range from 320 nm to 390 nm, Vitralit® UC 6685 can be cured in just a few seconds, enabling a high cycle rate in the production process. The in-house UV and LED UV systems of Dr. Hönle are perfectly matched to the adhesive for particularly fast and easy curing under UV light.
After curing, Vitralit® UC 6685 is very hard and scratch-resistant, it is characterized by its brilliant transparency and does not yellow as it ages.
Vitralit® UC 6685 can create drop effects or domings on glass bottles
18 June 2020
Adhesives for cell contacting systems and battery packs
Panacol has developed specially formulated UV adhesives that protect welded joints on cell contacting systems and battery packs of electric cars from corrosion. The flexible adhesives enable vibration-resistant connections and have a low ion content.
High-performance cell contacting systems (CCS), which combine individual lithium-ion battery cells for hybrid and electric vehicles to form battery packs, are often connected by welded strands or wires. To protect these welded joints from corrosion, Panacol has developed special low-ion UV adhesives that are applied as protective coatings. These adhesives provide additional mechanical support when subjected to vibrations and can compensate for thermal expansion of the different materials.
UV-curing adhesives Vitralit® UV 2113 and Vitralit® UV 2114 are characterized by very high adhesion to many materials and meet the requirements of the automotive industry in terms of media and temperature resistance. The rheological properties of both Vitralit® UV 2113 and Vitralit® UV 2114 can be adapted to individual customer requirements. Fluorescent adhesive variations for optical process control are also available.
In just a few seconds, these adhesives can be cured with light in the UVA or visible range. Both gas discharge lamps and LED spot systems can be used for curing. Perfectly matched to Panacol adhesives are the UV and LED UV curing systems from Dr. Hönle, for example the high-intensity LED Powerline AC/IC HP.
For complex CCS geometries with shadowed areas, dual curing Vitralit® UD 8050 is the perfect choice. After UV irradiation, this ion-pure acrylate adhesive post-cures in the shadowed areas by reacting with humidity in the air.
Biocompatible adhesive withstands high heat input
The epoxy resin based Vitralit® 1605 is particularly unique due to its high glass transition temperature and is therefore versatile for applications with high heat input. The biocompatible adhesive cures under UV light and is suitable for medical device assembly.
The one-component adhesive Vitralit® 1605 from Panacol is transparent and very easy to dispense. Its adhesion to glass and metal is excellent, which is why it can be used for fixing glass and rod lenses in endoscopes or for bonding lens stacks, for example.
The cationic Vitralit® 1605 can be cured under UV light in the wavelength range from 320 nm to 390 nm. It also features a thermal initiator that enables secondary curing of shadowed areas. The UV lamps from Dr. Hönle AG are well-matched for this adhesive, delivering fast and consistent curing processes.
When fully cured, Vitralit® 1605 is characterized by excellent chemical resistance and very low shrinkage. In addition, it has a very high glass transition temperature of 150°C and a low coefficient of thermal expansion. This provides the ability to bond components that require maximum stability during elevated operating temperatures. Furthermore Vitralit® 1605 can withstand the typical sterilization processes. Due to these characteristics, as well as its certification according ISO 10993-5, Vitralit® 1605 is especially suitable for bonding in medical technology.
Download technical data sheet
New thermally conductive adhesive for heat sensitive components
The new Elecolit® 6607 adhesive from Panacol is thermally conductive and can be oven cured at temperatures as low as 80°C. It is characterised by excellent metal adhesion and is electrically insulating.
Elecolit® 6607 is an epoxy resin-based adhesive filled with aluminium oxide. It is a one-component adhesive and due to its flow characteristics, it can be applied by dispenser, screen printing or spatula.
Since Elecolit® 6607 cures at temperatures as low as 80°C, even heat-sensitive components can be bonded together. Curing at higher temperatures will shorten the curing time.
After curing, the light gray adhesive insulates electrically and provides excellent heat dissipation. Due to its properties, Elecolit® 6607 is particularly suitable for bonding metal components and heat sinks to electronic circuit boards.
New adhesive Elecolit® 6607 is thermally conductive and can be cured from temperatures of 80°C.
New autoclavable UV coating
Vitralit® 2028 from Panacol is a new UV curable coating that is resistant to chemicals and is autoclavable. It is a flexible coating material that can be cured in two ways, UV or heat.
The transparent epoxy Vitralit® 2028 is easy to dispense because of its low viscosity. Nevertheless, it enables a clean edge finish without bleeding. It is therefore ideally suited as a flexible protective coating.
Vitralit® 2028 can be cured with light energy in the UV range from 320nm to 390nm. UV curing devices from the UV equipment manufacturer Dr. Hoenle are particularly suitable for an optimal UV curing process. The special feature of the adhesive is its thermal initiator, which allows secondary curing of shadowed areas using an oven.
The coating surface is very dry after UV curing, so coated components can be processed immediately. The final strength of the UV coating is achieved when the it cools down to ambient temperature. Once fully cured, Vitralit® 2028 is transparent and resistant to chemicals and is suitable for autoclaving. This material is ideal as a protective coating for wires in coil windings as well as other applications requiring protective coatings.
Download technical data sheet
Vitralit® 2028 is used as the coating of a coil winding to protect against chemicals.
New UV-adhesive with low halogen content
With Vitralit® UC 1536 Panacol is launching another low-halogen UV adhesive for the electronics industry. Due to its low ion-content, it is ideal for semiconductor production. The new very stable, high-gloss, transparent adhesive cures within a few seconds.
The adhesive Vitralit® UC 1536 is an epoxy-based adhesive, which hardens very quickly under UV-light. Due to its high viscosity, it is particularly suitable for applications that require dimensional stability within the production process.
When exposed to light energy in the UVA range from 320 to 390 nm, the Vitralit® UC 1536 adhesive can be cured within seconds. Panacol offers a broad line of suitable curing devices from Dr. Hönle that can create customized solutions for the processing of Vitralit® UC 1536. UV bonding and curing solutions are available for every application from a single source!
Vitralit® UC 1536 cures to an optically clear and high-gloss surface, which is very hard and scratch-resistant. Even at high operating temperature, the adhesive remains very clear and keeps its transparent brilliance. Characterized with a very low ion-content, Vitralit® UC 1536 is ideally suitable for semiconductors. A very successful application for this adhesive involves bonding glass lenses to CMOS sensors.
Individual parts of camera modules are fixed with adhesive such as Vitralit® UC 1536
Fast curing epoxy adhesive enables high efficiency cosmetic packaging
The new epoxy-based adhesive Vitralit® UC 6025 from Panacol optimizes automated assembly processes. It can be applied and cured very quickly due to its accommodating dispensing properties.
Especially designed for the cosmetics industry, Vitralit® UC 6025 has an optimal viscosity for gap-filling applications. The one-component epoxy adhesive is odourless and easy to dispense. Its controllability and fast curing properties make Vitralit® UC 6025 suitable for applications requiring a high performance.
Vitralit® UC 6025 can be cured with UV or visible light in just a few seconds. The adhesive curing process can be further optimized by using UV/LED curing equipment from Dr. Hönle. The fluorescing version of the adhesive, Vitralit® UC 6025 F, allows in-line process control for maximum productivity.
Once cured, the adhesive has high adhesion to ABS, aluminium and glass. These properties and lack of odour make Vitralit® UC 6025 ideal for applications in the cosmetics industry. Application examples include bonding lipstick applicators or bottle lids.
New epoxy adhesive Vitralit® UC 6025 is the perfect bonding solution for high volume production of plastic packagings
New biocompatible adhesive for plastics fluoresces orange
A new orange fluorescent UV adhesive from Panacol is specially formulated for bonding plastics: Vitralit® 7311 FO is certified according to USP Class VI standards which makes it the perfect solution for bonding medical devices.
Vitralit® 7311 FO is a low viscosity, transparent acrylic adhesive that cures under UV or visible light. It offers very high bond strength to many plastics including PC, PVC, PMMA or ABS, and also to materials such as glass and stainless steel. Thanks to its very low viscosity and capillary flow characteristics, Vitralit® 7311 FO is suited for bonding large surfaces as well as applications with narrow gaps.
Under low intensity black light (365 nm wavelength), Vitralit® 7311 FO fluoresces orange. This allows in-line inspection for quality control. The bright fluorescence is highly contrasting with plastics possessing a natural blue fluorescence or color. Optimum curing results can be achieved with LED curing equipment with a wavelength of 405 nm, especially the UV-LED equipment Bluepoint LED eco from Hoenle. Bluepoint LED eco can be equipped with both wavelengths, serving both processes. Thanks to modern photo initiators Vitralit® 7311 FO can be cured – especially in high volume production – within seconds.
Once cured, Vitralit® 7311 FO is humidity and alcohol resistant. Vitralit® 7311 FO has been tested and certified according to USP Class VI standards. The product is compatible to common sterilization processes like autoclaving, gamma radiation, E-Beam or ETO and well suited for use in the assembly of disposable medical devices.
Vitralit® 7311 FO fluoreces orange.
26 August 2019
New crystal-clear UV adhesive for semiconductor production
At this year’s BondExpo Panacol will present Vitralit® UC 1535, a new transparent adhesive specifically designed for use in electronics. It hardens with UV light within a few seconds and can be used for semiconductor production due to its low ion content.
The Vitralit® UC 1535 is an epoxy-based UV-curing adhesive that hardens very fast. It is easy to dispense and non shear-thinning. In just a few seconds, the adhesive can be cured with radiation in the UVA range from 320 to 390 nm. For a fast and efficient curing, the broad spectrum and UV/LED systems from Dr. Hoenle AG are highly recommended.
The adhesive was especially designed for the assembly and production of electronic and optomechanical components. For example, the new Vitralit® UC 1535 is being used to bond glass lenses in optical systems. Once cured the adhesive features a transparent, optically clear and brilliant surface, which is very hard and scratch-resistant. Vitralit® UC 1535 is non-yellowing and remains optically clear even when exposed to high temperatures. Because of its low ion content the adhesive can be used for semiconductor applications.
Visit us at the BondExpo in Stuttgart, Germany from the 7th to the 10th of October 2019 at booth 6420 in hall 6!
Vitalit® UC 1535 from Panacol is designed for the assembly and production of electronic and optomechanical components.
Panacol developed a new optically clear adhesive: Vitralit® 50004. The new adhesive is a one-component uv curable acrylic adhesive with ultra-low viscosity, which is used for bonding displays and laminating optics.
Vitralit® 50004 adheres specifically to a variety of substrates including coated glass, PET and other plastics and films. It possesses a very low viscosity that facilitates fast filling of cavities without air entrapment. The adhesives cures quickly with minimal shrinkage for less residual stress between substrates.
Large-surface bonding or lamination of displays can be optimized by using Hoenle’s high-performance and energy efficient LED Spot 100 curing system which is perfectly matched to the photoinitiators of Vitralit® 50004.The alignment of the LEDs of the Spot 100 ensures high intensity and homogeneous light distribution. The LED Spot 100 heads can be mounted together without gaps to match the size of the display being bonded.
Once cured, Vitralit® 50004 is very soft. Thermal stresses between dissimilar substrates can be neutralized without causing delamination. It’s high degree of flexibility enhances performance through repeated thermal excursions. The cured adhesive is optically clear and non-yellowing with excellent light transmission.
Download technical data sheet
LOCA adhesives from Panacol are the perfect solution for serial production of displays and touchscreens
Panacol developed a variety of new adhesive products with low ion content which cure with uv light and moisture. These products were specially formulated for applications in the electronics and consumer electronics industry, where heat sensitive parts must be assembled.
Vitralit® UD 8050 is a one-component acrylic adhesive, which can be used as an encapsulant to protect electronic components on PCBs. Vitralit® UD 8050 can be cured with uv or visible light. Moisture postcuring ensures full cure in shadowed areas or deeper layers of the adhesive, which cannot be reached by light.
For specific requirements several versions of the adhesive are available: Vitralit® UD 8050 MV F allows enhanced flow control and focused dispensing on each component thanks to its shear-thinning behavior. Its low ion content prevents cor-rosion on electronic components. For superior process control Vitralit® UD 8050 MV F contains a fluorescent marker.
For jetting, the low viscosity version Vitralit® UD 8050 LV is the perfect solution. Thanks to its easy dispensing and fast curing Vitralit® UD 8050 LV is very conven-ient for applications in the production of consumer electronics where a high throughput is needed.
By default, the adhesive is transparent, but it is also available in blue or fluorescing versions. Other colors are available on request.
Blue uv-moisture curing adhesive is used as encapsulant for electronic components
New outstanding adhesives in Panacol´s product line are the thermosetting, one-component epoxy resin adhesives with very good heat-conducting properties and very high metal adhesion. These adhesives were specially formulated to meet the increasing demands for bonding and dissipating heat from power electronics.
Elecolit® 6603 for example is augmented with mineral-based fillers which ensure high electrical insulation. Comparable dielectric strength is usually only achieved by thermally conductive adhesive tapes. As an added benefit, the adhesive is resistant to constant heat stress up to 200° C.
Elecolit® 6603 is slightly flexible and can also be used as a potting compound. It features very good flow behavior and can be processed via screen printing, with a dispenser, spreading knife or a spatula.
Variations of this adhesive are available that offer greater rigidity and several selections of viscosity ranges. Depending on the individual application adhesives with higher heat conductivity or higher dielectric strength are available.
Thermally conductive adhesives from Panacol feature a wide range of characteristics
New Adhesive for Bonding Displays
Panacol introduces a newly developed acrylate adhesive for bonding displays. Vitralit® UD 8540 is very soft after curing, providing the ability to intercept thermal stresses between dissimilar substrates.
Vitralit® UD 8540 is a one-component, UV-curing acrylic adhesive. It features a dual curing component which reacts to atmospheric moisture. Thus shadow zones within the display frame can also be cured reliably.
Vitralit® UD 8540 exhibits excellent adhesion to glass and PMMA, which makes it the perfect solution to bond glass/glass or glass/PMMA displays. For bonding glass/PC a specially formulated version of this adhesive is available. Both adhesive variations are free of solvents and silicones.
Large-surface bonding or lamination of displays can be optimized by using Hoenle’s high-performance and energy efficient LED Spot 100 curing system. The LED Spot 100 is perfectly matched to the photoinitiators of Vitralit® UD 8540.The alignment of its LEDs ensures high intensity and homogeneous light distribution, which is of utmost importance for display bonding. The LED Spot 100 heads can be mounted together without gaps to match the size of the display being bonded.
After curing Vitralit® UD 8540 is very soft with a hardness in the Shore 00 range. Thermal stresses between dissimilar substrates can be neutralized without causing delamination. The cured adhesive is transparent and non-yellowing.
Vitralit® UD 8540 is used for manufacturing displays
New Potting Compound With Excellent Flow Properties
Panacol has developed a new potting compound with medium viscosity and small filler particle size: Structalit® 5894-1 is the perfect choice for large-volume potting or glob top sealing of power electronics.
Structalit® 5894-1 is a one-component, black epoxy resin. During application it features optimum flow properties, due to its combination of optimized viscosity and small particle size of fillers. As an additional benefit, the low filler weight makes Structalit® 5894-1 less abrasive during application.
Structalit® 5894-1 cures rapidly when exposed to heat, which allows faster processing of large-volume electronic component potting and sealing. Once cured, the compound provides a smooth and level surface which is at the same time shock- and scratch-resistant.
Potting compound Structalit® 5894-1 provides smooth and level surfaces
New black epoxy underfiller
Panacol has developed a new epoxy-based underfiller. Structalit® 8202 is a low viscosity one-part adhesive with a high capillary flow filling the narrowest gaps.
Structalit® 8202 is a high performance underfill material designed for chip stack packages and BGA. It is a one part, black colored epoxy with low viscosity which flows into the narrowest gaps. Special features of this product are its low coefficient of thermal expansion and high glass transition temperature. This makes Structalit® 8202 stable at high temperatures, allowing usage in reflow processes.
Structalit® 8202 cures rapidly under the influence of heat. The underfiller can also be cured during reflow processes. Due to its very good compatibility with most leadfree solders the adhesive cures completely even if it gets into contact with residues from flux agents.
Once cured, the material provides excellent mechanical properties to protect solder joints during thermal cycling. Structalit® 8202 is RoHS compliant and meets electronic grade standards (less than 900ppm Cl-).
New underfill Structalit® 8202 flows into the narrowest gaps
New, flexible adhesive for PEEK
Panacol has developed an extremely flexible adhesive, which adheres particularly well to hard to bond plastics including PEEK: Vitralit® UV 4802 is a one-component acrylic system that cures very fast when exposed to light.
Vitralit® UV 4802 is a light curing adhesive based on acrylate resin, which features excellent adhesion to many plastics such as PEEK, PEN and TPU, that are typically hard to bond with conventional adhesives. This adhesive also adheres very well to ceramics and glass. Vitralit® UV 4802 is highly resistant to heat: tests have shown that the adhesive keeps its soft and flexible characteristics even after being exposed to temperatures of 150°C for seven days. Thanks to its high flexibility the adhesive is perfectly suited for bonding thin and bendable materials.
Vitralit® UV 4802 is of pink colour and cures within seconds under a UV or visible light source. Both gas discharge lamps and LEDs like the LED SPOT 100 from Hoenle are suitable for curing. Once cured, the adhesive fluoresces which enables inspection of the bondline under black light.
New flexible and bendable adhesive for bonding PEEK
New low-odour high-performance adhesive from Panacol
Panacol has a new two-component high-performance structural adhesive in its product range: Penloc® GTN is an easy to process methyl acrylate based low-odour adhesive that can be used in a wide variety of applications.
Penloc® GTN adheres especially well to brass, ceramics, steel, aluminium, PVC and similar materials. The performance adhesive boasts a high power transmission capability and excellent thermal stability. It is both flexible and offers superior adhesion. Compared to other methyl acrylate adhesives, it has the advantages of a low odour formation and a long processing time of ten to 15 minutes.
To allow effective monitoring of blending quality, the two components of Penloc® GTN have different colours that, applied thinly, change to a grey, almost colourless surface as the blend cures. Penloc® GTN can be conveniently dispensed from a handy 50 ml double cartridge or from drums connected to dispensing apparatus.
Structural adhesive Penloc® GTN
New Medical Grade Epoxy Adhesive
Panacol adds epoxy-based adhesive Structalit® 8801 to its portfolio of medical grade adhesives. The biocompatible adhesive was specially designed for bonding temperature-sensitive substrates as it cures quickly at low temperatures.
Structalit® 8801 is a single-component adhesive based on epoxy resin. Due to its viscosity characteristics it is perfectly suited as a potting or filling material. The beige-coloured adhesive possesses high chemical resistance against common cleaning agents used for medical devices, including isopropyl alcohol. It develops high bond strength with ceramics, metals and many plastics. For example, Structalit® 8801 is successfully being used as a potting compound for sensors in medtech devices.
Structalit® 8801 cures very quickly at low oven temperatures. At 100°C this adhesive will fully cure in only a few minutes.
For applications in medical devices Structalit® 8801 is certified according to ISO 10993-5 standards. The adhesive is 100% solvent free and compatible with common sterilization processes such as autoclaving, gamma irradiation, E-beam and EtO.
Structalit® 8801 is used for potting of sensors
New super-fast curing SMD adhesive
Specially designed for attaching SMDs on circuit boards, Panacol has developed new fast curing epoxy adhesive Structalit® 5610. Due to its high viscosity the adhesive is well-suited for screen printing. The new adhesive will be first shown at this years’s Productronica in Munich.
Structalit® 5610 is a red-colored epoxy adhesive which makes a perfect contrast to green circuit boards. The one-component adhesive is easily applied via dispenser, screen printing or needle transfer.
The SMD adhesive cures thermally within minutes, even at low temperatures. At the same time it is highly temperature-resistant: Temporarily it can be exposed to temperatures up to 280° C, making it the perfect adhesive for reflow soldering.
Once cured, Structalit® 5610 is extremely shock-resistant and features very high adhesion to FR4 circuit boards, to metals and to epoxy-based mold materials.
For more information visit us at Productronica in Munich in hall A4, stand 465!
Download our brochure on adhesive solutions for PCBs
Dots of Structalit® 5610 were applied via screen printing
New epoxy resin UV adhesive for dome coatings
At this year’s BondExpo, Panacol is presenting its latest development: Vitralit® UC 6686 – a UV-curing epoxy resin adhesive. Extremely hard and scratch-resistant, it is perfect for dome coatings and for decorating glass and plastics.
Vitralit® UC 6686 is an epoxy resin based single-component adhesive, which cures rapidly under UV light. Developed especially for dome coatings, its high viscosity makes it ideal for automatic dispensing and application with precise pattern.
Once cured, Vitralit® UC 6686 is extremely hard and scratch-resistant and has a transparent, brilliant high-gloss surface that does not yellow. It adheres especially well to glass, plastics and metals and has already been successfully used to in the decoration of glass perfume bottles.
The adhesive can be cured with both UV gas discharge lamps and UV LED lamps. Very good adhesion of applications over a large surface can be achieved with Hönle’s LED Spot 100 at a wavelength of 365 nm.
Visit us at the BondExpo in Stuttgart, Germany in Hall 6, Stand 6420!
Vitralit UC 6686 is well suited for applying decorative reliefs on glass bottles
Precision spraying of maskings and conformal coatings
The new preeflow® eco-SPRAY precision volume dispenser from ViscoTec makes for even and fast application of Panacol maskings and conformal coatings. The new technology yields perfect results with exceptional edge sharpness whether spraying low- or high-viscosity UV adhesives.
Spraying high-viscosity adhesives from Panacol onto large surfaces at more than 10,000 mPa becomes child’s play with the eco-SPRAY from ViscoTec: the new dispenser makes short work even of highly viscous and stable materials, such as Panacol’s liquid seal Vitralit® FIPG 60102 or masking compound Vitralit® MASK 20102, which is specially formulated for temporary coatings. The purely volumetric dosing of the eco-SPRAY system uses the endless piston principle to precisely meter and apply exact amounts regardless of their viscosity and supply pressure.
To achieve the required layer thickness, the applied amount can be changed simply by changing the air pressure, the adhesive volume, the distance to the substrate or the speed of application. The eco-SPRAY is intuitive in use and can be adapted to different materials and dosing processes with a range of supplied needle diameters and air caps.
Capable of handling viscous adhesives, the eco-SPRAY has also proven suitable for spraying and vaporizing low-viscosity conformal coatings. The two products used here were Vitralit® 2004 F and Vitralit® 2007 F – both dual-curing epoxy resin based adhesives. With the eco-SPRAY, both of these adhesives can be applied as surface coatings with high edge sharpness and cured in a continuous process with UV flood lamp, for example from Hönle’s UVAPRINT range. Here, the arc length can be ideally adapted to the PCB’s width.
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More information on eco-SPRAY by Viscotec
Panacol's masking adhesives are easily sprayed with Viscotec's eco-SPRAY
New structural adhesive cures at low temperatures
Panacol introduces newly developed structural adhesive Structalit® 8801 T, which cures rapidly at low temperatures. The epoxy adhesive was specially formulated for temperature-sensitive applications in electronics, as well as automotive and aerospace industries.
Structalit® 8801 T is an all-purpose beige-colored single-component epoxy adhesive. It is ideally suited for potting applications in electronic components. Its excellent chemical resistance against oils and fuels makes it the perfect choice for bonding applications in the automotive and aerospace industry. Structalit® 8801 T has been successfully used in applications where strong resistance to hot kerosene and brake fluids was needed.
Due to its shear thinning properties Structalit® 8801 T offers improved flow control and the ability for precise dispensing on components surfaces. This adhesive develops high bond strength on ceramics, metals and many plastics.
Structalit® 8801 T cures very quickly at low oven temperatures. At 100°C this adhesive will fully cure in only a few minutes. Induction curing processes can be used to cure Structalit® 8801 T on ferromagnetic substances.
New shear-thinning adhesive Structalit® 8801 T cures at low temperatures
New Glob Top adhesives
Specially for the consumer and general electronics industry, Panacol has developed two new adhesives with a low halogen content: Vitralit® UD 8050 and Structalit® 8838 provide encapsulation of electronic components on PCBs.
Vitralit® UD 8050 is an acrylic-based one-component adhesive which, thanks to its easy dispensing ability and rapid curing, is especially suitable for use in the consumer electronics sector, in which a high throughput is necessary.
Exposed to UV light, Vitralit® UD 8050 cures within seconds. Being dual UV and moisture curing, Vitralit® UD 8050 will also fully cure in shadowed areas not reached by the UV light, thereby increasing the performance of the hardened adhesive. For enhanced process control, a version with fluorescent marker is also available.
Structalit® 8838 is a black epoxy-based one-component adhesive. Its key characteristics are a low glass transition temperature, good flexibility and fast thermal curing. Once cured, Structalit® 8838 is the perfect solution for flexible encapsulation of electronic components. Temperature and moisture tests have proved that the adhesive does not impair the properties of individual components.
Both Vitralit® UD 8050 and Structalit® 8838 allow better flow control and precise dispensing on individual components due to their intrinsic viscosity. Both of these adhesives are compatible with fluxing agent and can therefore ensure full, effective curing on electronic components. With a low halogen content, they fulfil international electronic grade standards regarding corrosion prevention of electronic components.
A fluorescent version of dual curing adhesive Vitralit UD 8050
New UV-adhesive for elastomeric bonds
At the BondExpo in Stuttgart/Germany Panacol presents a new solvent free UV-adhesive. Vitralit® VBB-2N LV features low viscosity and is ideally suited for bonding elastomeric materials.
Due to its extremely low viscosity Vitralit® VBB-2N LV is suitable for large area bonding as well as applications where the gap size is very small. When cured, it demonstrates excellent flexibility and environmental stability. Vitralit® VBB-2N LV is a solvent-free transparent adhesive and provides very good adhesion to most elastomeric materials like TPE (Thermal Plastic Elastomer) and rubber (natural rubber latex, NBR, SBR etc).
If at least one assembly material is transparent, Vitralit® VBB-2N LV cures in seconds with UV-A light to produce a strong and reliable bond. UV-blocking materials like polycarbonate can be cured due to the adhesive’s ability to cure with visible light (>400nm). Both gas discharge lamps and LEDs are suitable for curing. Excellent curing results were achieved with the 405nm Blue Point LED light from Dr. Hoenle AG.
For use in medical applications Panacol can provide an alternative product with similar properties that meets the requirements for USP Class VI and is compatible with sterilization by autoclaving, gamma irradiation and EtO.
Panacol-Elosol GmbH, a member of the global Hoenle group, is an international supplier of adhesives with a broad product range that includes UV curable adhesives, structural adhesives, and conductive adhesives. Panacol is also a reliable provider of UV processing systems, supported by Dr. Hoenle AG. Hoenle is a global technology leader and manufacturer of industrial UV curing devices and systems. At BondExpo in Stuttgart, Panacol presents its high tech products for various applications.
Download technical data sheet about Vitralit® VBB-2N LV
Two substrates bonded with new UV-adhesive Vitralit VBB-2N LV
New plastic adhesive with multiple viscosity options
Panacol introduces a newly developed UV adhesive, which is specially formulated for bonding plastics and will be available in three different viscosities.
The appropriate viscosity can be chosen depending on the application: Vitralit® 7311 is extremely low viscosity and thus the perfect choice for very tight bond gaps. Vitralit® 7311 T is a mid-range viscosity version, and Vitralit® 7311 Gel features high viscosity, non-flowing properties.
All three variations of Vitralit® 7311 provide excellent adhesion to most plastics like PC, PVC and PMMA, as well as to metal and glass. Vitralit® 7311 is transparent and non-yellowing. It is resistant to alcohols and humidity. Once cured, the adhesive will be visco-plastic. For use in medical applications Vitralit® 7311 is currently being tested according to USP Class VI and DIN ISO 10993-4/-5 standards.
Vitralit® 7311 cures in seconds with ultraviolet or visible light. For excellent curing results high intensity LEDs at 405 nm wavelength are recommended. This wavelength also permits the bonding of UV blocked materials like polycarbonate. Vitralit® 7311, as an example, can be utilized for needle bonding in medical device manufacturing. Cured with a Bluepoint LED eco light source from UV manufacturer Hönle, Vitralit® 7311 achieves high bond strength in less than a second, providing reliable and durable bonds.
Vitralit® 7311 is the perfect choice for bonding needles
New UV-adhesive for plastic bonds
At the Medtec show in Stuttgart/Germany Panacol presents a new adhesive from its successful Vitralit® UV 4050s series: Vitralit® UV 4050 MV features medium viscosity and is best suited for bonding plastics, especially for medtech applications.
With 450 to 650 mPas Vitralit® UV 4050 MV is of medium viscosity. When cured it shows a very good flexibility and an excellent stability. This transparent adhesive has a very low shrinkage of only 2%.
The newly developed adhesive provides excellent adhesion to most plastics like PVC, ABS, SAN and PC, as well as to stainless steel and glass. If at least one assembly material is transparent, Vitralit® UV 4050 MV will cure very quickly to produce a strong and reliable bond. UV blocked materials like polycarbonate can be cured thanks to the adhesive’s ability to cure with visible light (>400nm).
Vitralit® UV 4050 MV cures in seconds with UV-A and visible light. Both gas discharge lamps and LEDs are suitable to use for curing. Excellent curing results were achieved with LED lights with a wavelength of 405 nm. Vitralit® UV 4050 MV is currently being tested according to USP Class VI and DIN ISO 10993-4/-5 standards for use in medical applications.
New light curing adhesive Vitralit® UV 4050 MV features excellent adhesion to plastics and polycarbonate
New jettable conductive adhesives
Panacol recently expanded its Elecolit®-product portfolio. Thanks to new, innovative filling materials and optimized hardener systems, newly developed adhesives with improved conductivity are now available. For maximimum processing speed, these adhesives can be applied by jetting. New hardener systems in many of the one part epoxy based adhesives develop cure within minutes.
The new Elecolit® silver filled adhesives are available in a range of viscosities to accommodate various applications and requirements. As the conductivity is strongly dependent on the content of conductive filler, Panacol uses uniquely shaped filling materials to achieve an optimal fill ratio. This ensures high conductivity and consistent product performance.
Jetting conductive Elecolit® adhesive
New low-viscosity UV- and visible light-curing adhesive
Vitralit® UV 4050 LV is a newly developed adhesive with extremely low viscosity and thus the perfect choice for very tight bond gaps. It provides excellent adhesion to most plastics like PC, PVC, PS, ABS, SAN as well as to metals like stainless steel, steel or aluminum and glass. If at least one assembly material is transparent, Vitralit® UV 4050 LV will cure very quickly to produce a strong and reliable bond. The ability to cure with visible light (>400nm) permits the bonding of UV blocked materials like polycarbonate. Vitralit® UV 4050 LV is currently being tested according to USP Class VI and DIN ISO 10993-4/-5 standards for use in medical applications.
Vitralit® UV 4050 LV cures in seconds with UV-A and visible light. Both gas discharge lamps and LEDs are suitable to use for curing. High intensity gallium doped gas discharge lamps produce excellent curing results.
Download technical data sheet: Vitralit® UV 4050 LV
Vitralit® UV 4050 LV is the perfect choice to bond transparent tube sets with tight bond gaps
New dual curing adhesive
Vitralit® UD 2018 is a thixotropic epoxy adhesive with extremely low shrinkage. It can be dispensed very precisely with accurate bead dimensions, making it the perfect choice for micro dispensing in electronic applications, such as fixing SMDs or transceivers on PCBs.
Typically, Vitralit® UD 2018 comes in a pink and fluorescent version. It cures with traditional UV-A discharge lamps or 365 nm LED-light. Any shadowed areas can be post cured thermally.
The adhesive offers all the benefits of epoxy resins: It is highly resistant to environmental stresses, and can better withstand the effects of wide temperature excursions and moisture. This makes Vitralit® UD 2018 the perfect solution for bonding SMDs and electronic components which are frequently subjected to temperature variations and thermal shock.
Dual cure adhesive Vitralit® UD 2018 can be accurately dispensed
Panacol Expands Adhesive Portfolio for Medical Applications
Adhesive Structalit® 5893 is Panacol’s latest addition to its portfolio of medical grade adhesives. The black epoxy potting compound has been specially formulated for bonding metals and stainless steel. Structalit® 5893 has already proved successful as a black encapsulant in electronic applications, as well as for bonding and encapsulating injection devices for veterinary medicine. The adhesive is based on epoxy resin with excellent resistance to moisture and thermo-shock.
Germany-based Panacol-Elosol GmbH, a member of Hoenle Group, is a leading manufacturer of industrial and medical grade adhesives.
Visit us at Medtec Europe from 21 to 23 April 2015 in Stuttgart at stand no. 7C 28!
Download technical data sheet about Structalit® 5893
Panacol Presents New Medical Grade Adhesive
Panacol-Elosol GmbH presents new medical grade adhesive Vitralit® 7041 MV at this year’s Compamed in Duesseldorf, Germany: Panacol’s latest addition to its medical grade adhesives portfolio is Vitralit® 7041 MV.
The adhesive has a USP Class VI-certification and has been successfully tested in needle bonding applications. Vitralit® 7041 MV is an acrylate which shows very high adhesion to polycarbonate and is thus very suitable for needle bonding, reservoir assembly, bonding dialysis filters, and bonding of connectors and IV tube sets.With a viscosity range from 200 to 400 mPas, Vitralit® 7041 MV can be used in a variety of bond gaps and joint configurations. For an optimum process control, the adhesive is also available in a fluorescent version, Vitralit® 7041 MV F, which is also certified USP Class VI. Vitralit® 7041 MV can be cured with either UV- or LED-light. The quickest curing results were achieved with 405 nm LEDs.
Vitralit® 7041 MV is specially formulated for bonding needles into plastic oder glass syringes
Panacol presents its LED-curing epoxy adhesives at this year's BondExpo trade fair in Stuttgart, Germany. Thanks to the development of new photoinitiators, Panacol is now able to produce new adhesive materials that are based on highly resilient epoxy resins. They can be fully cured within seconds with many of today’s UV-LED light curing systems.
An epoxy adhesive is cured with LED light