ENTROPY CLR Epoxy Resin is our flagship, high-performance clear coating epoxy resin system. The CLR System is a water clear, UV stabilized epoxy system for applications that require a low colour, low yellowing epoxy resin such as high colour applications. This system features a quick air-release and a world-class UV resistance package. ENTROPY CLR works with multiple hardeners to match your working parameters. It has an ideal viscosity for a wide range of applications that use hand layup techniques with fast room temperature cures. Super Sap â€“ Make Things Better.