PVC Resin (SPECS) Tape: SG1 SG2 SG3 SG4 SG5 SG6 SG7 SG8 K value 77-75 74-73 72-71 70-69 68-66 65-63 62-60 59-55 Viscosity, ml/g 156-144 143-136 135-127 126-119 118-107 106-96 95-87 86-73 Average polymerization 1350-1250 1250-1150 1100-1000 950-850 950-850 750-650 Number of impurity particleâ?¤ 30 30 30 30 30 30 40 40 Volatiles content %,â?¤ 0.40 0.40 0.40 0.40 0.40 0.40 0.40 0.40 Appearing density g/mlâ?¥ 0.42 0.42 0.42 0.42 0.42 0.45 0.45 0.45 Residual after sieve 0.25mm meshâ?¤ 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 0.063mm lâ?¥ 90 90 90 90 90 90 90 90 Number of grain/400cm2â?¤ 40 40 40 40 40 40 40 40 Plasticizer absorbency value of 100g resin 25 25 25 22 19 16 14 14 Whiteness %,â?¥ 74 74 74 74 74 74 70 70 Residual chlore thylene content mg/kgâ?¤ 5 5 5 5 5 5 5 5 Ethylidene chloride mg/kgâ?¤ 150 150 150 150 150 150 150 150 Useage: is widely used in the production of water pipe,plastic windows and doors,packing film, plastic carpet,plastic ceiling and etc. Packing:25kg/bag,17MT/20'FCL