Waterproof Clear Epoxy Potting Compound 5:1 Two Component Encapsulant for Underwater Electronics HN-5508AB is a clear two-component epoxy potting compound with a 5:1 mix ratio, specially formulated for underwater electronics, marine equipment and water-exposed electronic module encapsulation . It combines UL 94 V-0 flame retardancy, excellent thermal shock resistance, high dielectric strength and low water absorption, protecting sensitive circuits from moisture ingress and