PERMATEX Ultra Red Gasket Maker 85gm PX81630 High Temp Sensor-Safe Sealant 

PERMATEX Ultra Red Gasket Maker is a high-performance RTV silicone sealant designed for extreme temperature applications up to 343 °C (650 °F). Ideal for automotive exhaust manifolds, headers, turbo flanges and slip-fit joints, this sensor-safe, non-corrosive formula replaces pre-cut gaskets and stands up to heavy thermal cycling. Perfect for professional mechanics, DIYers and high-performance builds alike.

Features

• High temperature resistance: Resists intermittent temperatures up to 343 °C (650 °F).
• Sensor-safe RTV silicone: Low-odour, non-corrosive and safe for modern engine sensors and electronics.
• Cuts out gasket supply hassles: Replaces nearly any pre-cut gasket for difficult flange joints.
• Wide temperature range: Works from –54 °C up to 343 °C intermittent for reliable sealing in extreme conditions.