Epic Resins — Polymers for Industry Since 1958

The Value in UL-Certification

Underwriters Laboratories (UL) is a leader in safety sciences and is globally recognized for producing safety solutions. We send many newly formulated epoxies and polyurethanes to UL for testing and certification. When a flame-retardant resin is recognized by UL, it means this resin has been tested and provides safety-related certification to manufacturers and consumers.

Our UL file contains over 40 different UL rated epoxies and polyurethanes to protect your application while ensuring normal, stable operation. Our knowledgeable Technical Sales team is ready to assist you in finding a solution to fit your needs.

We are continually adding to our UL file. Check the UL Online Certifications Directory for the most up to date listing. Epic Resins UL file

Is there a difference between "flame retardant" and "flame resistant"?

Yes. Although the words “flame” and “fire” can be used interchangeably, there is a difference between the words “resistant” and “retardant.”

A “flame resistant” material is inherently resistant to igniting and will not melt or drip when exposed to extreme heat. While flame-resistant materials can catch fire, they’re not likely to ignite from being near fire and many flame-resistant materials will actually choke a fire to the point of putting it out.

A “flame retardant” material is one that has been chemically treated to self-extinguish if it catches fire. Fire-retardant chemicals are commonly used on plastics and furniture to reduce the chance of a fire spreading.

Popular UL-Recognized Materials

 
  • Epic S7633 is a black, two component polyurethane
  • Designed to attain an RTI rating above 140C
  • Great combination of low CTE & low Tg
  • Convenient 4:1 volumetric mix ratio
  • RoHS compliant
  • UL 94 V-0 recognized at 9mm
  • Applications include: battery packs, PCB potting, under-the-hood applications
  • Epic S7553 is a two-component polyurethane compound
  • Convenient 4:1 volumetric mix ratio
  • UL 94 V-0 recognized at 6 mm
  • RoHS compliant
  • Designed for electronic potting applications, including: battery management systems, sensors, control modules & under-the-hood applications
  • Epic S7527 is a series of 2-component polyurethane potting compounds
  • UL 94 V-0 recognized
  • Formulated to provide a long gel time at a medium hardness
  • Excellent electrical properties
  • Great choice for potting and encapsulating sensitive electronics that are exposed to harsh environments
  • S7524 is an unfilled UL 94 V-0 recognized polyurethane
  • Low viscosity and easy 2:1 by volume mix ratio for high-volume production
  • Various gel times and viscosities are available to work with a variety of battery pack and module configurations
  • Lightweight formula and mid Shore A hardness
  • Excellent in battery applications, providing mitigation of thermal runaway and its propagation within battery cells
  • Epic S7475 is a two-component polyurethane compound
  • Designed for potting electronic control modules (ECM's) and a wide variety of electronic devices with an operating range of -50°C to 130C°C
  • Low mixed viscosity allows the material to flow into intricate areas under printed circuit boards and other tight-tolerance areas
  • 4:1 by volume mix ratio allows the system to be very adaptable for meter mix and dispense processing
  • Very low hardness in combination with the low Tg provides excellent flexibility, allowing delicate surface-mounted devices (SMDs) to expand and contract during thermal cycling and thermal shock
  • Has shown extremely low weight loss at 130°C, for applications that generate a great deal of heat
  • UL 94-V0 recognized at 4.8 mm
  • RoHS compliant
  • Epic S7244 is a UL 94 HB recognized epoxy
  • Simple 1:1 mix ratio
  • Contains less abrasive filters, which makes it ideal for use in meter-mix and dispensing machinery
  • Works great in applications where thermal conductivity and electrical insulation is required
  • Epic R1055/H5083 is a UL-recognized, vacuum-grade modified epoxy system
  • RTI rating of 180°C RTI
  • Low mixed viscosity and a long gel time allow this material to achieve 100% penetration of tightly wound coils and tight tolerance spaces in potting applications
  • Cures at ambient temperatures, giving a reduction in energy costs associated with heat-curing
  • When fully cured, features a combination of exceptional physical and electrical properties that qualify the compound for potting high-voltage power supplies
Viscosity: 2,300 – 3,300 cps @ 25°C, 20 RPM
Hardness: 85 – 90 Shore D @ 25°C

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Industries Using UL-Recognized Resins

Applications requiring UL-recognized polyurethanes and epoxies are limitless. Numerous industries already use our UL-certified resins, including:

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