Press Releases and News
Panacol introduces new high-performance frame-and-fill adhesives
Panacol has developed a new range of high-performance adhesives for frame-and-fill applications on printed circuit boards.
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.
Structalit® 5704 is applied as a stable "frame" and then filled with low-viscosity fill material to form a homogeneous protective coating of sensitive components
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.
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
Fluorescence testing of a strand protected with Vitralit® UD 8052 F on a piezo actuator.
Panacol and Hönle 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 can be applied during the winding process and immediately cured with high intensity LED curing systems from Dr. Hönle AG. This innovative winding process is extremely space and time-saving, and can produce significant processing cost savings.
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 then be quickly cured with UV/visible light. 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.
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.
For the most efficient UV curing system for fibre and filament winding processes, the LED Powerline AC/IC 820 HP from UV specialist Hönle 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.
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.
The winding of a filament impregnated with Vitralit® UD 1405 is cured under UV LED light
New UV Adhesive for Decorations and Dome Coatings
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.
Adhesive drops for decoration on a glass flacon
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.
Steinbach/Taunus, 18 March 2020
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.
Steinbach/Taunus, 13 February 2020
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.
Vitralit® 2028 is used as the coating of a coil winding to protect against chemicals.
Steinbach/Taunus, 20 January 2020
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
Steinbach/Taunus, 15 November 2019
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.
Steinbach/Taunus, 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.
Eleco Produits – EFD to become Eleco Panacol – EFD
French company Eleco Produits – EFD, specialising in industrial adhesives, dispensing and uv curing equipment, and German based adhesives manufacturer Panacol-Elosol GmbH, are both members of the adhesives division within the Hoenle Group, headed by publicly listed company Dr. Hoenle AG. To better support the growth requirements of their global customers, and present a more unified product offering, Eleco Produits – EFD is changing its name to Eleco Panacol – EFD effective August 1, 2019. “With this decision we see synergies in marketing and global brand recognition for the Panacol Group”, explains Laurent Prevost, Managing Director of Eleco Panacol – EFD.
Eleco Produits – EFD has been specializing in the distribution of industrial adhe-sives and matching dispensing and curing equipment since 1974. Since the beginning, Eleco has been partnering with German adhesives manufacturer Panacol-Elosol, distributing uv, structural and conductive adhesives. Inhouse laboratories for quality control and adhesive applications allow in-depth testing and qualified consultation. Since 2008, Eleco has also been distributing matching uv curing equipment from new parent company Dr. Hoenle. To complement its all-in-one solutions, Eleco also provides dispensing equipment for its adhesives portfolio. Situated in the metropolitan Paris area, Eleco benefits from a central logistic hub. Effective quality control methods ensure high quality products, packaging and transport. Eleco is certified to ISO 9001 standards.
The focus of Eleco Panacol – EFD will remain on the sales of innovate industrial adhesives and equipment from its facility in Genevilliers/Paris. The organization’s management and team will remain intact.
Visit Eleco-Panacol website
Eleco Panacol - EFD in Paris area, France
New Optically Clear Adhesive
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 homogenous 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.
LOCA adhesives from Panacol are the perfect solution for serial production of displays and touchscreens
New Panacol Adhesives Cure With UV/moisture
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
Tangent Industries Inc. to become Panacol-USA Inc.
US adhesives and coatings manufacturer Tangent Industries Inc., based in Torrington, Connecticut and German based adhesives manufacturer Panacol-Elosol GmbH, are both part of the adhesives division within the Honle Group. The head of the Honle Group is the publicly listed company Dr. Hoenle AG. To better support the growth requirements of their global customers, and present a more unified product offering, Tangent Industries Inc. is changing its name to Panacol-USA Inc. effective October 1st, 2018. Moreover, Panacol-Elosol will gradually assume full ownership of the new Panacol-USA within a 5 year span. “With this decision we see synergies such as global marketing and to provide adhesive products under one brand to our worldwide acting customers”, explains Florian Eulenhöfer, Managing Director of Panacol-Elosol GmbH.
Tangent Industries Inc. has been specializing in the development and production of UV curing acrylic adhesives and coatings since 1994. Panacol was the distributor for Tangent products outside the Americas since the very first day. The focus of Panacol-USA Inc. will remain on the development, production, and sales of innovate UV acrylic adhesives and coatings from its facility in Torrington. The organization’s management and team will remain intact.
Panacol-Elosol GmbH and Panacol-USA Inc., both members of the global Hoenle group, are leading suppliers of industrial adhesives, with a broad product range that includes UV curable adhesives and coatings, structural epoxies and conductive materials for electronics assembly. Panacol-USA Inc. is also a reliable provider of UV/LED processing systems in the Americas, designed and manufactured by Dr. Hoenle AG, a global technology leader of industrial UV curing devices and systems.
Visit website panacol-usa.com
Panacol-USA Inc. in Torrington, Connecticut