HN-5508AB Halogen Free Clear 5:1 Epoxy Potting Compound HN-5508AB is a two-component, halogen-free, clear transparent epoxy potting compound with a 5:1 mix ratio by weight. It is designed for potting and encapsulation of LED drivers, LED power supplies and lighting electronics where both flame safety and optical clarity matter. After curing it forms a clear, glossy, bubble-free encapsulation with Shore D 80 hardness, 20-22 kV/mm dielectric strength, water absorption below 0