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TRA-CON: Fire-Retardant Epoxy Casting Compound
TRA-CAST 3143 is a black, low-viscosity epoxy adhesive with a low coefficient of thermal expansion and a Shore D hardness of 78. It has a long working life of 3 hours and can be cured in 24 hours at ambient temperatures, or more quickly with a step-cure to 65 degrees C. This casting compound has excellent adhesion to most electronic and aerospace industry materials, including metals, glass products, ceramics, industrial laminates, and many rigid plastics. TRA-CAST 3143 is also certified to the requirements of UL 94 V-O, so it is perfect for applications that require fire retardancy. This 100% reactive solids content adhesive is useful for such applications as rigid potting, laminating, transformer encapsulating, filament winding and coil embedding.
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