... 2) Loss of weight at calcination: 27% ± 2% 3) Tensile strength before curing: ≥ 1000N/cm 4) Thickness ( ... mm): 20, 25, 30 6) Storage time: 3-- 12 months Properties: Type2850-W2841-W2830Thermal classHFBVolatile content≤2 ... pancake)0.1710,15,20,25,3025050100,1200.3/0.3310,15,20,25,3020050100 * Special ... temperture °C10152030Time (month)121063 Insulation Glass Fiber Banding Tape Used For Transformer