Cotran resin joint kits (CRJK), made from polyurethane resin (PUR), are designed for indoor/outdoor (weather exposed), underground applications. CRJK is a safe, simple, and reliable jointing solution for both straight type and branch type joints. Excellent electrical and physical properties of CRJK make them ideal for insulating and protecting electrical assemblies. The PUR resin also can be suitable for use as adhesives or sealants. Flame retardant PUR is also available.