Two part, heat curing epoxy for potting, encapsulation, coating, sealing and impregnation

Key Features

  • Very low viscosity
  • Superior electrical insulation heat resistance
  • Excellent optical clarity
  • Withstands 1,000 hours 85°C/85% RH

Product Description

Master Bond EP112 is an astonishingly low viscosity two component epoxy resin system for potting, encapsulation, sealing, coating and impregnation. The mix ratio is an easy to use 100:80 by weight. EP112 offers a fabulously long open time of 2-3 days or longer. It does require oven curing for a number of hours. A typical cure schedule would be 1-2 hours at 200-210°F followed by 3-4 hours at 250°F and then 4-6 hours at 300°F. Post curing at 350°F will further enhance product properties. Some of the more salient attributes of EP112 are outstanding electrical insulation properties, solid physical strength values as well as noteworthy optical clarity. It has excellent adhesion to glass fibers and ceramics, along with metals, composites, glass and many rubbers and plastics. EP112 is serviceable over the wide temperature range of -60°F to +450°F. It features good resistance to a variety of chemicals, including water, oils, fuels, acids and bases.

Master Bond EP112 is widely used for potting, sealing, casting and encapsulation applications, as well as impregnations. It is especially useful as it pertains to epoxy, composite and other fiber reinforced structures found in pipes, storage tanks, instrumentation and computers, among other electronic and aerospace structures. Since it retains its wonderful electrical insulation profile, even in harsh conditions, EP112 can be used in numerous electrical applications, including those with transformers and their bushings, switchgear components, resistors and many other electrical devices. Even though the cure schedule is somewhat long, the profound advantages in using EP112 in terms of its cured properties and ease of application enable it to be used successfully in a wide variety of applications.

Product Advantages

  • Low viscosity, very long working life at ambient temperatures; very low exotherm
  • Superb physical strength properties. Solid dimensional stability
  • Impressive electrical insulation characteristics
  • Noteworthy thermal stability, service temperature range -60°F to +450°F
  • Ideal for impregnation applications

Industrial Certifications

1,000 Hours at 85°C/85% RH






EP112 is available is various sizes and units to accommodate customer's needs.

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