Permatex The Right Stuff gasket maker 5 oz — fast-curing black RTV, sensor-safe, oil-resistant

Permatex The Right Stuff 29208 is a fast-curing black RTV gasket maker that forms a flexible, oil-resistant, blowout-resistant gasket in one minute so you can reassemble immediately.

This high-performance, sensor-safe gasket maker is engineered for automotive, heavy-duty, and marine sealing applications where speed and durability matter. Designed to replace pre-cut gaskets, The Right Stuff creates a formed-in-place elastomeric seal that resists ATF, engine oil, coolant and common shop fluids while tolerating wide temperature swings. It’s widely used on OEM production lines and selected in service programs because it balances rapid handling with long-term durability.

How quickly can I reassemble parts after applying this gasket maker?

The Right Stuff is formulated to skin over and set rapidly so most assemblies can be tightened and returned to service about one minute after application. This dramatically reduces downtime compared with traditional RTVs that require long cure times.

• “Formed-in-place” seal becomes handleable in approximately one minute
• No waiting for full cure to reassemble in most installations
• Ideal for fast repairs in busy shops or field service

Will this product hold up against heat and automotive fluids?

The compound resists a broad range of temperatures and common vehicle fluids without degrading. It’s rated for continuous use from -75°F to 450°F and intermittent exposure up to 500°F, and it withstands ATF, engine oil, and coolant contact.

• Continuous temperature tolerance: -75°F to 450°F (-59°C to 232°C)
• Intermittent tolerance up to 500°F (260°C)
• Resistant to automatic transmission fluid, engine oil, and coolant

Which surfaces and applications are best suited for The Right Stuff 29208?

Use this gasket maker wherever a formed-in-place, flexible gasket is preferred to pre-cut paper, cork or rubber gaskets. It’s commonly applied on oil pans, timing covers, transmission pans and differential covers, and it performs well in both automotive and heavy-duty environments.

• Oil pans, valve covers, timing covers and gearbox covers
• Transmission pans and differential covers—marine and land applications
• OEM-style service parts and shop repairs where vibration resistance is needed

Does this product affect sensors or corrode metal surfaces?

The Right Stuff is non-corrosive and formulated to be sensor-safe, minimizing risk when used near modern engine sensors and electronics. Its elastomeric rubber compound adheres securely without promoting rust or electrical interference when used correctly.

• Non-corrosive formula protects mating metal surfaces
• Sensor-safe for use near many engine and transmission sensors
• OEM-grade handling and durability used in production lines

Who is this for: Permatex The Right Stuff 29208 is aimed at professional mechanics, fleet maintenance crews, restoration specialists and DIYers who need a reliable, fast-setting gasket maker that stands up to oils, fluids, vibration and temperature extremes. If you require a formed-in-place gasket that reduces downtime, performs on OEM-level jobs, and delivers long-term sealing where pre-cut gaskets fall short, this product is built for your workbench or service bay.