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UV/Visible Cationic Epoxies

As their exclusive distributor for the Americas, Tangent offers light curable epoxies from Panacol-Elosol. Panacol-Elosol GmbH is a member of the Hönle Group headquartered in Germany, and has been formulating and manufacturing adhesives for over 30 years.

With an expertise in epoxy development, Panacol’s product line includes innovative light curable epoxies based on cationic cure. Unlike light curable adhesives that utilize free radicals to initiate the polymerization process, light curable cationic cure epoxies absorb light energy to generate ions that initiate an ionic polymerization process. This translates to the following advantages:

  • Light curable cationic epoxies are not subject to oxygen inhibition, which means the cured adhesive surface is dry and tack-free.
  • Light curable cationic epoxies have little or no shrinkage during cure.
  • Light curable cationic epoxies are low odor.
  • Light curable cationic epoxies typically offer better adhesion than other light curable adhesives.
  • Light curable cationic epoxies are abrasion and chemical resistant.
  • In the event that exposure to UV light curing energy is terminated prior to the light curable cationic epoxy becoming fully cured, it will continue its polymerization without light energy (in the previously illuminated area) until full cure is achieved

Light curable cationic epoxies combine proven epoxy durability with the processing speed of today’s light curable adhesives. Epoxy bonds possessing high strength, extreme clarity, and moisture resistance can be developed in seconds using a UV/Visible light curing process. These products are ideally suited for applications that are subject to environmental stresses, higher operating temperatures, and extreme wear.

Now, LED curable cationic epoxies are available. These new formulations can be cured with LED curing systems at 365nm wavelength.

View the UV/Visible Epoxy products listed below for a possible candidate for your application. Please contact Tangent to confirm your product selection and to secure additional application assistance, including samples and process recommendations

Product Number Suitable Applications Viscosity cP mPa Shore Durometer 24 Hour Water Absorbtion LEDcure Bondable Substrates Comments/Features Request
TDS button TDS
Sample button Sample
Vitralit 1605 encapsulating 300-500 D80-90 < 0.2% yes, limited glass lens, metal, ceramic light curable, cationic epoxy, high optical clarity, low viscosity, easy to dispense, fast curing, high Tg, resistant to thermal cycling, no outgassing Request sample button TDS button
Vitralit 1650 glob top/encapsulant 6000-9000 D70-80 < 0.2% yes FR4 epoxy board, glass, metal, ceramic, plastics UV cure, cationic epoxy, high purity and low ionic content, high adhesion, resistant to thermal cycling, grey color Request sample button TDS button
Vitralit 1655 encapsulating 200-400 A70-80 < 0.35% no FR4 epoxy board, glass, metal, plastic UV cationic curable epoxy, clear and flexible , resistant to thermal shock, excellent for substrates with mismatched CTE, low viscosity, can be used as an underfill Request sample button TDS button
Vitralit 1657 glob top/encapsulant/flex circuit assembly 120,000-130,000 D62-68 < 0.8% no flex circuit film, FR4 epoxy board, glass, metal, ceramic, plastics UV cure, cationic epoxy, flexible, high purity and low ionic content, high adhesion, resistant to thermal cycling, light grey color Request sample button TDS button
Vitralit 1671 glob top/dam material 250,000-300,000 D80-90 < 0.3% no FR4 epoxy board, glass, metal, ceramic, plastics UV cure, cationic epoxy, good heat conductivity, moisture resistant, high purity and low ionic content, high adhesion, resistant to thermal cycling Request sample button TDS button
Vitralit 1680 fill/encapsulate 6,000-9,000 D70-80 < 0.2% no FR4 epoxy board, glass, metal, ceramic, plastics, smart card UV cure, cationic epoxy, high purity and low ionic content, high adhesion, resistant to thermal cycling, grey color Request sample button TDS button
Vitralit 1688 fill/encapsulate 3,000-4,000 D70-80 < 0.2% no FR4 epoxy board, glass, metal, ceramic, plastics, smart card UV cure, cationic epoxy, high purity and low ionic content, high adhesion, resistant to thermal cycling, grey color Request sample button TDS button
Vitralit 2004-F conformal coating 60-100 D15-25 < 1.0% no FR4 epoxy board, glass, metal,ceramic,plastics UV cure, secondary thermal cure, soft/flexible cationic epoxy, clear, chemical resistant, fluorescing, ideal for spray dispense Request sample button TDS button
Vitralit 2007 conformal coating 200-300 D40-50 < 0.5% no FR4 epoxy board, glass, metal,ceramic,plastics UV cure, secondary thermal cure, flexible cationic epoxy, clear, chemical resistant, fluorescing Request sample button TDS button
Vitralit 2008 conformal coating 200-300 D40-50 < 0.5% no FR4 epoxy board, glass, metal,ceramic,plastics UV cure, secondary thermal cure, flexible cationic epoxy, clear, chemical resistant, low flow characteristics for better containment after dispensing Request sample button TDS button
Vitralit 2009-F conformal coating 100-200 D40-50 < 0.5% no FR4 epoxy board, glass, metal,ceramic,plastics UV cure, secondary thermal cure, flexible cationic epoxy, clear, chemical resistant, fluorescing Request sample button TDS button

*Note: viscosity variations are typically available, or can be formulated, for all listed products. Please inquire with Tangent Applications Engineering for viscosity ranges not shown in the table.
**Note: modifications can be made to most products in order to meet unique performance requirements. Adding fluorescing properties, color, and secondary curing mechanisms are typical examples of minor modifications. Please contact Tangent Applications Engineering to discuss your specific requirements.

Contact Tangent Industries for more info.