... 2Environment friendly, flexible, flame-retardant polyolefin tubingApplicationKOSOO K-2 is environment friendly, flexible, flame-retardant, irradiated crosslinking ... tubing. Unlike other typical flame-retarant tubings, K-2 is free of PCBs, PCPs, polybrominated biphenyls (PBBs ... protection, identification and color coding, etc.n Features/Benefits·Shrink ratio: 2:1.·Very flexible, highly flame-retardant.· ...