HANAST HN-5508 A/B 5:1 Flame Retardant Epoxy Potting Compound for EV Battery, Power Module and New-Energy Electronics Encapsulation HN-5508 A/B is a two-component, room-temperature or heat-curable epoxy potting compound engineered for the electronics, electrical and new-energy industries. Mixed at a 5:1 ratio by weight, it flows with low viscosity and a long pot life, penetrates narrow gaps, and cures bubble-free into a smooth, glossy, high-hardness (Shore D 85-95) black