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Permatex 81630 Ultra Red High Temperature Gasket Maker is a professional-grade silicone sealant designed for automotive repairs requiring high heat resistance up to 700ยฐF. Its advanced formula ensures strong adhesion, flexibility, and resistance to oils and shop fluids, making it ideal for exhaust leaks and other demanding applications. Trusted by thousands with a 4.7-star rating, this 3 oz tube delivers reliable, long-lasting performance.











| ASIN | B08CRY2BJB |
| Best Sellers Rank | #86,686 in Automotive ( See Top 100 in Automotive ) #384 in Automotive Greases & Lubricants |
| Brand Name | Permatex |
| Color | Ultra Red |
| Customer Reviews | 4.7 4.7 out of 5 stars (2,035) |
| Included Components | Ultra Red High Temperature Gasket Maker |
| Item Thickness | 0.2 Inches |
| Item Type Name | Permatex Ultra Red High Temperature Gasket Maker 3 oz |
| Item Weight | 95 g |
| Manufacturer | Permatex |
| Material Type | Silicone |
| Model | 81630 |
| Part Number | 81630 |
| UPC | 686226816306 |
| Unit Count | 1 Count |
S**.
good quality and price
good quality and price works great for exhaust leaks
R**O
Excellent
Excellent
J**Y
Red gasket tube that actually works
Trust this tube if your shop runs hot. I grabbed it for my espresso machine and a cranky space heater in the lobby. This stuff sticks, cures fast, and doesnโt stink up the front desk. I squeezed a thin bead, bolted things back together, and went right back to customers.
M**.
Great deal.
Good quality at a fair price.
J**N
Very hard to apply, would be better with a caulk gun.
Great product, but make sure you've worked on your grip strength to get this out of the tube. I actually cut a fairly large application port into the lid and it still took all my strength to get this to come out smoothly. Additionally, the metal tube eventually broke in the process before everything was applied. It makes a fantastic seal though and I feel confident that my oil pan gasket replacement will last for the remaining life of the car.
Trustpilot
1 month ago
1 week ago