SKU: PEX29208
UPC: 686226292087
MPN: 29208
Permatex 29208 The Right Stuff is a black, formed-in-place gasket maker built for engine builders and mechanics who need a seal that holds up to heat, vibration, and shop fluids. Packaged in a 5 oz cartridge, it replaces pre-cut gaskets on valve covers, oil pans, water pumps, thermostat housings, and gearbox covers. The elastomeric silicone cures in one minute, so the assembly can return to service without an overnight wait. If you keep your bench stocked with oils, fluids, and sealers, this is the gasket maker for jobs where a paper gasket would weep or blow out.
The formula is a black elastomeric silicone that stays flexible after curing, which is what lets it absorb the thermal expansion and vibration that cracks rigid gaskets. Per Permatex specifications, it handles a continuous temperature range of -75 degrees F to 450 degrees F, with intermittent exposure to 500 degrees F. It resists automatic transmission fluid, coolant, oil, and other common shop fluids, and it is non-corrosive and sensor-safe for use near oxygen sensors. The cartridge measures roughly 5.85 by 2.60 by 2.00 inches and dispenses cleanly through a standard caulk-style applicator. This same material is specified on GM, Ford, DaimlerChrysler, and Mercedes-Benz production lines, so the blowout resistance is proven on factory assemblies, not just the aftermarket.
Reach for the 29208 cartridge when you are sealing a high-movement or high-oil joint and want a one-piece bead instead of fighting a cut gasket. Apply a continuous line to a clean surface, assemble the parts, and the one-minute cure means you can torque and run the engine the same session. The cartridge format suits high-volume shop work where a tube runs out too fast. For other sealing needs, we stock Form-A-Gasket sealants and a range of greases and lubricants to round out the build.
It is a formed-in-place gasket maker for automotive and marine sealing jobs, including valve covers, oil pans, water pumps, thermostat housings, gearbox covers, pumps, and compressors. It replaces pre-cut gaskets on joints that see oil exposure, vibration, and thermal movement, forming a one-piece seal that resists blowout.
The Right Stuff cures in about one minute, which lets you torque the assembly and return the equipment to service right away. There is no overnight wait like you get with many silicone sealants, which is why shops favor it for high-volume work.
Per Permatex specifications, the cured material handles a continuous range of -75 degrees F to 450 degrees F, with intermittent spikes up to 500 degrees F. It also resists automatic transmission fluid, coolant, oil, and other common shop fluids without breaking down.
Yes. The formula is sensor-safe and non-corrosive, so it can be applied near oxygen sensors and electronic components without the off-gassing concerns associated with some silicone products. It stays flexible after curing to protect against leaks from vibration and thermal expansion.
This is a 5 oz cartridge that dispenses through a standard caulk-style applicator. The cartridge format holds more than a squeeze tube and is suited to high-volume shop use. Permatex ships these six units per case.
WARNING ⚠️ You must be 18 or older to purchase shotgun or rifle ammunition and 21 or older to purchase handgun ammunition and firearms. Please reference our requirements for ammunition orders to "restricted" states HERE. Always make sure you use the correct ammunition for your firearms. Ammo cannot be shipped to a PO Box. Please reference state & local laws before making a firearm or ammunition purchase.
