It is a RoHS (Restriction of Hazardous Substances)-compliant flame retardant masterbatch designed to be used in conjunction with SI-LINK™ AC DFDB-5451 Polyethylene to form a flame retardant moisture-cure insulation system. Designed to meet UL-44 and CSA C22.2 No. 38-18 for Thermoset-Insulated Wires and Cables.