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.
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Maximum temperature performance
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Sensor-safe, non-corrosive, RTV silicone
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OEM specified
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Temperature resistance up to 750°F (399°C) intermittent
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Resistant to high thermal cycling
Header, Manifold, Slip-Fit Exhaust Parts, Turbocharge