... ; 5, Outstanding electrical, insulative & di-electric properties. Dielectric constant 3-3.2 breaking down voltage: 20-50KV/MM; 6 ... 1, Safety curtains, heater covings in the wide range of industries applications ,civil construction & transportation vehicles 2, Joint expansion ... 3, Electric insulation tapes, sleevings in the environments of high grade electric insulation; 4, High silica glass coated ...