🔥 Seal the deal with high-temp confidence!
Permatex 81409 High-Temp Red RTV Silicone Gasket is a professional-grade, 11 oz. silicone sealant designed for extreme temperature ranges (-65°F to 650°F intermittent). It creates durable, formed-in-place gaskets that resist cracking, shrinking, and fluid migration, making it perfect for automotive applications like valve covers, oil pans, and water pumps. Waterproof and quick-curing, it ensures reliable, long-lasting seals under heavy-duty conditions.
| Color | Factory |
| Brand | Permatex |
| Item Weight | 0.4 Pounds |
| Liquid Volume | 11 Fluid Ounces |
| Initial Hardening Time | one Hours |
| Item Form | Liquid |
| Maximum Gap Fill | 6 Millimeters |
| Surface Recommendation | Clean Dry Surfaces like Valve covers, oil pans, timing covers, water pumps, and thermostat housings |
| Water Resistance Level | Waterproof |
| Number of Items | 1 |
| Manufacturer | Permatex |
| UPC | 686226814098 |
| Global Trade Identification Number | 00686226814098 |
| Unit Count | 11.0 Ounce |
| Material | Silicone |
| Item Weight | 6.4 ounces |
| Product Dimensions | 12 x 1.75 x 1.42 inches |
| Country of Origin | China |
| Item model number | 81409 |
| Is Discontinued By Manufacturer | No |
| Manufacturer Part Number | 81409 |
| OEM Part Number | 81409 |
S**E
Durability
Used the permatex to adhere a dryer door gasket to the door. Worked as expected being a permatex product. Have used their products in the past with great success and so far this job is no exception. Will continue with their products.
J**Z
As described.
Bought this here cause it’s significantly cheaper than auto stores. Exactly the same product, just much cheaper. Works great for repairing small engines with hard to find/make gaskets. Would highly recommend.
M**L
Exactly as Advertised and Cheap
Way cheaper than other places online and especially cheaper than the parts store. Exact product that it says it is.
V**4
It works Great and it has a lot of uses
Its my go to RTV, water pump gasket no problem , need to repair a torn gasket no problem. You will find a lot of different uses for it .
L**
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Needed this product and it worked out great.
M**N
Used it on high-temp antique steam equipment
Husband and others he knows have used to this to seal a metal smokestack on an antique steam boiler. Requires high temp product.
N**R
Wood stove rope seal adhesive
Recommended by my chimney sweep to use instead of the runny, watery glue that comes with the kits.Wood stove has been running a couple weeks now and the rope seal is still firmly attached.
L**S
Just what I needed
I needed a high temp silicone to seal around the flashing for our wood stove chimney. It had not been sealed properly in the past, and leaked when it rained. I have used this product in the past for engine work and was familiar with the great sealing properties that it has. I was glad to find it available in caulk tube form. It worked perfectly, filling the voids and making what should be a permament seal. Now for some rain to try it! This is an excellent product.
Trustpilot
2 months ago
4 days ago
