Robnor PX804C-1/BK Epoxy Potting Compound Twin Packs – Robnor PX804C-1/BK/500, A general-purpose, black flame-retardant epoxy potting and encapsulating compound ideal for potting electrical and electronic components and assemblies.The compound is supplied in a divided pack containing pre-measured amounts of resin and hardener. When the dividing clip is removed, the two parts can be mixed in the bag, preventing air entrapment and direct contact. Robnor PX804C-1/BK/500 Epoxy Potting Compound Twin Pack 500g