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🔥 Seal the deal with ultra copper power – your engine’s new best friend!
Permatex Ultra Copper RTV Silicone Gasket Maker is a professional-grade, high-temperature sealant designed for automotive applications. It offers superior adhesion, sensor-safe formulation, and exceptional resistance to oil and vibration. With a temperature tolerance from -75°F to 700°F intermittent, it’s ideal for exhaust manifolds, valve covers, and other critical engine components. Sold in a convenient 12-pack, it delivers long-lasting, flexible sealing performance trusted by mechanics and enthusiasts alike.
| ASIN | B001REZA1W |
| Best Sellers Rank | #1,477 in Automotive ( See Top 100 in Automotive ) #4 in Gasket Sealers |
| Brand | Permatex |
| Brand Name | Permatex |
| Color | Copper |
| Customer Reviews | 4.8 out of 5 stars 29 Reviews |
| Global Trade Identification Number | 30686226818783 |
| Included Components | Tube of Gasket Maker |
| Item Form | Paste |
| Item Weight | 2.9 pounds |
| Manufacturer | Permatex |
| Material Type | copper |
| Model | 81878-12PK |
| Number of Items | 12 |
| Part Number | 81878-12PK |
| Surface Recommendation | Miscellaneous |
| Unit Count | 36 Fluid Ounces |
| Water Resistance Level | Waterproof |
M**0
Works great on headers!
Since I have been using ultra copper I have had zero header leaks! I've used it on valve covers and intake end gaskets with no issues with oil leaks, just good all around. I buy in bulk to save money, I just keep it in my house where the temps are controlled and it last for around two years no problem maybe longer?
R**N
Actual product
Great price for a name brand product. Will buy again if available.
G**T
High temp, but not recommended for oil and gas
Used it on a few things. So far so good. Unfortunately I did not read that it's NOT good for oil and gas products. The main reason I got it was to seal an intake leak on old cast iron head.
R**R
Make sure you need this much.
Lol. I ordered it thinking it was awful expensive but I got a 12 pack and only needed half a tube. Great product though
S**Y
Best Gasket maker
All around best gasket maker product.
M**S
For high temperature and pressure
We were able to test this product at around 450-500 Celsius and 100 psig. This product is sealing perfect at those conduction. It may also be safe till 200 psig. However, we dd not test it at that pressure.
A**R
Five Stars
Great price.
A**R
Buen producto.
Buen Producto, calidad.
Trustpilot
2 months ago
2 months ago