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๐ ๏ธ Seal it like a pro, last like a legend!
Permatex 85080 Ultra Black RTV Silicone Gasket Maker is a sensor-safe, non-corrosive sealant designed for high-flexibility and maximum oil resistance. It withstands extreme temperatures (-65ยฐF to 500ยฐF) and resists powertrain fluids, eliminating the need for traditional gaskets. OEM-approved and highly rated, itโs ideal for valve covers, oil pans, and more, ensuring professional-grade durability and performance.











| ASIN | B000HBGI1M |
| Best Sellers Rank | #27,526 in Automotive ( See Top 100 in Automotive ) #114 in Automotive Fillers, Adhesives & Sealants |
| Brand | Permatex |
| Brand Name | Permatex |
| Color | Ultra Black |
| Compatible Material | Metal, Plastic, Rubber |
| Customer Reviews | 4.6 out of 5 stars 1,666 Reviews |
| Global Trade Identification Number | 00686226850805 |
| Item Dimensions | 5.2 x 5.2 x 25.4 centimeters |
| Item Form | Paste |
| Item Type Name | Permatex 85080 Ultra Black Maximum Oil Resistance RTV Silicone Gasket Maker, 9.5 oz. PowerBead Can |
| Item Weight | 9.5 Ounces |
| Item dimensions L x W x H | 5.2 x 5.2 x 25.4 centimeters |
| Item weight | 9.5 Ounces |
| Manufacturer | Permatex |
| Material | Silicone |
| Material Type | Silicone |
| Model | 85080 |
| Number of Items | 1 |
| Part Number | 85080 |
| Style | Pack of 1 |
| Style Name | Pack of 1 |
| Surface Recommendation | Miscellaneous |
| UPC | 686226850805 |
| Unit Count | 9.5 Grams |
| Water Resistance Level | Not Water Resistant |
| Water resistance level | Not Water Resistant |
G**S
Excellent Product
Excellent and supreme quality product for sealant.
A**R
Great stuff
Great stuff, works exactly as advertised. Easy to use, good seal.
L**E
Excellent
Excellent Used to install a crankcase/crankshaft oil seal on a Lycoming engine
R**T
Excellent sealer with real grip
I can't say this stuff is easy to remove once applied as the only time I had to remove a piece I had used the product on it put up a heck of a fight coming off. That proved that it had created a tight seal which is what I wanted. Vibration wasn't going to lossen it that's for sure. Application can be messy if you get in a hurry but its ability to create a tight seal with a firm holding power would be hard to duplicate this side of a weld.
A**4
Good gasket maker, but watch the cure time
I have used Permatex products for years. I tried the Optimum Black because it's supposed to have the highest oil resistance. The product works well. The only issue is that you have to be careful of the cure times. At lower temperatures this sealant will take more than 24 hours to cure. I used it on a valve cover in a garage that was 45 degrees and it took several days to fully cure.
Trustpilot
3 weeks ago
5 days ago