Epic Resins — Polymers for Industry Since 1958

Transformer Resin Compounds

With excellent physical and electrical properties, our epoxies and polyurethanes will help optimize your transformer's performance. Whether you are looking for a UL recognized varnish or a material to encapsulate your transformer, Epic Resins can help you select the right resin for your exact specifications.

We formulate, manufacture and supply a full line of epoxy resin and polyurethane systems for transformers. These formulations are specifically designed for high-temperature, high-voltage applications. Available in a wide range of viscosities, we can meet your production needs. We can manufacture quantities to fit your short-run or bulk supply needs.

Help your Transformer Function Better

Transformers are exposed to high temperatures and high voltage. To function properly, they need durable protection. With capabilities suited for parts in extreme conditions, our compounds prove their worth with superior results.

Popular Transformer Compounds:

 
  • Epic S7527 is a UL 94 V-0 recognized polyurethane potting compound
  • UL 94 V-0 flame rating
  • RTI rating of 150°C per UL 746
  • Designed for use in equipment conforming to UL 8750, the standard for LED equipment for use in lighting products
  • Low mixed viscosity for superior flow into tight tolerance areas
  • Excellent thermal and electrical properties
  • Low weight loss at elevated temperatures
  • Outstanding adhesion to various metal and plastic substrates
  • RoHS compliant
  • Excellent moisture resistance
Viscosity: 3,000 – 4,000 cps @ 25°C, 20 RPM
Hardness: 88 – 92 Shore A @ 25°C
  • Epic S7219 is a two-component, clear epoxy electrical potting compound
  • Designed for encapsulating small transformers
  • Low viscosity and long pot life to provide air bubble-free castings
  • Epic S7195-02 is a two-component, filled epoxy casting system
  • Phthalate-free
  • Convenient 2:1 mix ratio by volume
  • Blue and yellow A/B parts, resulting in a green mixed product
  • 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
  • Epic 0229 is a single-component epoxy resin, no mixing is required
  • Designed for the impregnation of coils, transformers, motors and other electrical items needing insulating
  • Long shelf life at ambient temperature, no refrigeration is needed
  • Exceptional toughness and a high glass transition temperature to survive demanding environments
  • Epic ProPreg 0118 is a single-component 100% solids epoxy resin system
  • Designed for the impregnation of coils, transformers, motors and other electrical items needing insulating
  • Outstanding shelf stability
  • Very low viscosity and good electrical properties
  • Can be used as a potting resin, dip process resin, or V.P.I. resin system
  • TC0118 series of UL-recognized thermally conductive epoxy varnishes
  • Variety of viscosities available to yield the film thicknesses your application requires
  • Can be used as electrical potting compounds, dip process resins, or VPI resins
  • Part of UL File no. OBJS2.E123927

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Benefits in Transformer Applications

Built for telecommunications industries, our polyurethane and epoxy potting compounds are formulated to resist heat and moisture, and to deter corrosion and eventual system breakdown of PCB components.

Other benefits of our potting compounds include:

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