TAGS: Epoxy Adhesives Sealants
Master Bond's one-part epoxy, Master Bond EP36FR, has received Airbus certification for meeting specifications for toxic gas emissions per AITM 3.0005, Issue 2 in the flaming mode and Section 7.4 of ABD0031, Issue F. The epoxy system also passes the 12 second vertical burn test per AITM 2.0002B and Section 7.1.2 of ABD0031, Issue F. EP36FR uses a non-halogenated filler.
High Temperature Resistance with Low Glass Transition Temperature
Master Bond EP36FR withstands rigorous thermal cycling, as well as thermal and mechanical shocks. The epoxy system has high temperature resistance up to 500°F, despite a low glass transition temperature of 95-100°F. The epoxy system maintains toughness or hardness across a wide temperature range. Master Bond EP36FR is ideal for potting, encapsulation, sealing and coating applications. The hardness values at 212°F and 300°F are in the 20-30 Shore D range.
The Master Bond EP36FR formulation is B-staged, meaning it is a solid at room temperature and must be heated in a forced air or convection oven to transform it to a liquid at around 200°F. The feature allows the epoxy to be reused when it resolidifies at room temperature, provided it has not been cured. After liquefying the epoxy at 200°F, and applying it on the substrates in the application, it needs to be heat cured for two to three hours at 350°F.
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These Airbus ratings are not just relevant for manufacturing aircraft components, but they are also considered to be among the most stringent of certifications for flame retardancy and toxicity,” said Rohit Ramnath, senior product engineer. “
The ratings serve as a good starting point for various composite applications across the aerospace, marine, transportation, electrical, and automotive industries,” added Ramnath.
Master Bond EP36FR bonds well to metals, composites, glass and many plastics. The product is available in half pint, pint, quart and 30 gram preforms.
Source: Master Bond