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🛠️ Seal the deal with ultra-black confidence!
Permatex 85080 Ultra Black RTV Silicone Gasket Maker delivers sensor-safe, non-corrosive adhesion with superior resistance to engine oils and fluids. Its flexible silicone formula withstands extreme temperatures from -65°F to 500°F, eliminating the need for traditional gaskets. OEM-approved and perfect for critical engine components, it ensures durable, leak-proof seals trusted by professionals.














| ASIN | B000HBGI1M |
| Best Sellers Rank | #31,758 in Automotive ( See Top 100 in Automotive ) #133 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 1,616 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.
J**.
Durable and Versatile – Excellent Gasket Maker for Oil Resistance
The RTV silicone gasket maker is an excellent product for sealing engine parts that need maximum oil resistance. I’ve used it for valve covers and oil pans, and it has held up perfectly under harsh conditions, even with high temperatures and constant exposure to oil. The application is straightforward, and it forms a strong, durable seal that doesn’t leak once cured. It dries quickly and provides a solid, long-lasting bond that is resistant to oil, water, and other fluids. Overall, it’s a high-quality gasket maker that does exactly what it promises. Perfect for anyone needing a reliable sealant for automotive or other oil-resistant applications. Highly recommend!
Trustpilot
1 month ago
1 month ago