🚀 Seal the Deal with Confidence!
The Permatex 81878-12PK Ultra Copper Maximum Temperature RTV Silicone Gasket Maker is a high-performance solution designed for extreme conditions. This pack of 12 offers unmatched heat resistance, superior oil resistance, and exceptional flexibility, making it the go-to choice for automotive and industrial applications. Its sensor-safe, low-odor formula ensures safe use across various components, from exhaust manifolds to water pumps.
| Manufacturer | Permatex |
| Brand | Permatex |
| Item Weight | 2.88 pounds |
| Product Dimensions | 8.9 x 8.4 x 4.3 inches |
| Country of Origin | China |
| Item model number | 81878-12PK |
| Is Discontinued By Manufacturer | No |
| Manufacturer Part Number | 81878-12PK |
B**5
👍✨️
Product is as shown, works as it should.
J**T
It worked
It’s sealant, it works, still going strong after having it on for quite awhile (Used it for my headers and connecting to the exhaust)
B**D
Ultra copper sealer
Works well to seal hot surfaces and seems to last well.
S**Y
Great product
Great product
N**L
Good, but went on sale AFTER I bought it.
I used this for the various sealant requirements in my recent Mazda rotary engine rebuild. Rotor housing feet, front pulley bolt, oil pan. The color makes it stand out so when I got some squeeze-out from putting a little too much on the rotor feet, I could easily remove it before the oil pan was installed. The temperature range seems way overkill for this, but that's not a bad thing. While not specific to this RTV alone, make sure you clean the nozzle with a nail. Between uses you'll get boogers in your bead or a clog in the nozzle and nobody wants that.
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.
W**L
Permatex
This is good copper gasket maker and seal.
M**N
a must have when using band clamps on older exhaust systems!
a must have when using band clamps on older exhaust systems!
Trustpilot
1 day ago
3 weeks ago
