A black high density polyethylene copolymer designed specifically for telecommunications ducting. TC46-20B balances stiffness, ESCR and molecular weight to provide required toughness and crush strength without compromising processability. TC46-20B contains a minimum of 2% carbon black to assure long-term UV protection. Carbon black loading is 2.2% per ASTM D 4218. Cell classification is 335440C per ASTM D 3350. Oxidative Induction Time is 20 min at 200°C per ASTM D3895. |