SF-555 Silicon Self-Fusing Tape (High Temperature Self-Fusing Insulation Tape): Silicone Rubber Self-Fusing Tape is a high performance, extruded wrapping tape. No adhesive is required. SF Tape is self-adhering, self-fusing and permanent. It fuses in minutes and cures in 24 hours at room temperature. Faster curing and a harder finish is accomplished by applying heat after wrapping. Temperature range is -60°C to 250°C for continuous use; -65C to +260C for intermittent use. Break down voltages 33.6KV. Silicone Self-Fusing Tape is tough, permanently resilient, insulating and void-free. SSF is strong, elastic and conforming. It is ideal for automatic wrapping. It protects from effects of vibration and shock. It will not crack or separate with expansion or contraction stress. This product is amazingly useful. Size: 1ROLL 25.4MM X 0.508MM X 12 YARDS.