Directions: 1. For best results, surfaces should be clean and dry. 2. Cut nozzle and apply a continuous 1/16″ to 1/4″ (2 to 6mm) bead of silicone to one surface, surrounding all bolt holes. Assemble parts immediately while silicone is still wet. Finger tighten until material begins to squeeze out around flange. 3 Let dry for on hour then tighten to torque specifications, 4. Allow 24 hours to fully cure before filling with fluids or returning to service. 5. Replace cap after use. NOTE: Not recommended for use on head gasket or parts in contact with gasoline.
Permatex’s Optimum Red offers the maximum temperature resistant available today. Optimum Red ranges up to 750°F (399°C); higher than Ultra Copper and Regular RTV Red. This Maximum Temperature gasket maker is resistant to high thermal cycling and is sensor-safe, non-corrosive RTV. This chemical gasket maker can be used in replacement of pre-cut gaskets and is ideal for high-temperature applications such as the exhaust manifold, header, turbochargers and slip-fit exhaust parts.
1Maximum temperature performance
2Sensor-safe, non-corrosive, RTV silicone
4Temperature resistance up to 750°F (399°C) intermittent