3 oz Ultra Red High-Temp Gasket Maker for Auto Gaskets 650°F
✔️ Sensor-safe OE spec, low-odor gasket dressing survives high heat
Permatex Ultra Red High-Temp Gasket Maker is a 3 oz RTV silicone sealant designed for automotive gaskets and high-temperature seals. It's ideal for valve covers, exhaust manifolds, intakes, and other high-heat areas where a durable, oil-resistant seal is needed. Sensor-safe and OE-spec compliant, it works with silicone gaskets and acts as both a gasket maker and a dressing.
✅ Temperature resistance up to 650°F (399°C) intermittent
✅ Sensor-safe OE spec compliance
✅ Low odor, non-toxic, non-corrosive
✅ Can be used as gasket maker or dressing
✅ Resists oils and shop fluids for automotive use
💡What is a high-temperature gasket maker used for in automotive repairs?
This handy sealant is used in places like valve covers, exhaust manifolds, and intake ports where heat and oils are present.
- It bonds to metal and gasket materials with strong adhesion
- It remains flexible under thermal cycling for a reliable seal
- It resists oils, coolant, and common shop fluids
- It can double as a gasket maker and dressing for OE silicone gaskets
