Thermally Conductive, Flame Retardant Encapsulant

This material has met and exceeded the requirements for the vertical ignition test where castings of the epoxy EP93AOFR were exposed to flames for 60 seconds.

Master Bond
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The EP93AOFR from Master Bond (Hackensack, NJ) is a two-part epoxy that may be used in encapsulation and potting applications, as well as in bonding, sealing and coating. The Federal Aviation Regulations (FAR) Standard 14 CFR 25.853(a) test is typically used for determining material compatibility for various components inside aircrafts. This material has met and exceeded the requirements for the vertical ignition test where castings of the epoxy EP93AOFR were exposed to flames for 60 seconds. The results show that it took under 4 seconds to extinguish the flames, well under the allotted 15 seconds permitted by the test. The second part of this test measures how far the flame spreads. EP93AOFR exhibited a burn length of just 1.2 inches, well under the maximum allowed of 6 inches. Additionally:

  • EP93AOFR bonds well to a variety of different substrates including metals, composites, glass, ceramic, FR4 and other plastics.
  • It is serviceable from -80°F to +300°F [-62°C to +149°C] and offers good chemical resistance to water, fuels, oils and many common solvents.
  • This system is available for use in ounce, ½ pint, pint, quart and gallon kits. It can also be purchased in premixed and frozen syringes.

www.masterbond.com; 201-614-5853

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