Supply power switch with Polyurethane

Polyurethane, polyurethane sealant, PU electronic potting, potting Series Hardness Shore A75, divided black and white, good thermal conductivity, V0 class flame retardant, good liquidity, low stress, shock pressure, excellent electrical properties, bubble less, for precision arrester, all kinds of transformers, transformers, filters, control panels, ignition, power modules, circuit boards and other sealing