Epic Resins Polymers for Industry Since 1958 Call for Product Recommendations 800-242-6649

Electronic Potting For:

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

Get A Quote

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.

Alternate TextView Brochure

Popular UL-Recognized Materials

  • Epic S7633 is a black, two-component polyurethane
  • Designed for electrical potting applications
  • Formulated to attain an RTI rating above 140C
  • UL 94 V-0 recognized flame rating at 9mm
  • Epic S7553 is a two-component polyurethane
  • Designed for electronic potting applications
  • UL 94 V-0 recognized flame-retardant system
  • 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
  • Epic S7524 is a transparent, UL 94 V-0 recognized polyurethane compound
  • Low mixed viscosity
  • Designed for potting PCB assemblies for use in white goods
  • Transparent color also makes this product ideal for applications requiring LED indicators to display through the potting
  • Epic S7475 is a two-component polyurethane compound for potting electronic control modules (ECM’s) and a wide variety of electronic devices
  • 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 (SMD's) to expand and contract during thermal cycling and thermal shock
  • Extremely low weight loss at 130C, for applications that generate a great deal of heat
  • UL 94 V-0 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 premium fire-retardant Epoxy
  • Heavy metal free
  • 180C RTI
  • UL 746 rated with F1 for outdoor exposure and long work life
  • Excellent choice for your high-temperature potting applications, capable of penetrating tightly wound electrical coils.

Industries Using UL-Recognized Resins

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

Get A Quote
© Copyright 2025 Epic Resins - Polymers for Industry. All Rights Reserved.