DEI Tan Glass Fiber Exhaust Wrap Thermal Tape Made of glass fiber, characterized by very high thermal resistance, 2.5cm x 15m thermal tape. Reduces about 50% of the heat in the engine compartment. Do not use on the catalytic converter. Temperature resistance: - continuous operation: 650 ° C - momentary jumps: 1100 ° C. DEI's Tan Glass Fiber Exhaust Wrap thermal band. thermal resistance. Thermal tape with dimensions of 2.5 cm x 15 m. Reduces about 50% of the heat in the engine compartment. Do not use on the catalytic converter. Temperature resistance: - continuous operation: 650 ° C - short-term strokes: 1100 ° C