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Permatex Sealant 81878; Ultra Copper Maximum Temperature RTV 3oz Squeeze Tube - Picture 2 of 2

Permatex 81878 Ultra Copper Maximum Temperature RTV Silicone Gasket Maker 3oz.

4.9328 product ratings

performancepartsracing (128197)

99.5% positive feedback

Price:

$11.14

Free shipping

Estimated delivery Thu, May 15 - Tue, May 20

Returns:

30 days returns. Buyer pays for return shipping. If you use an eBay shipping label, it will be deducted from your refund amount.

Condition:

New

Gasket Sealant Model or Series:Ultra Copper Maximum Temperature RTV. OEM specified. The most advanced, high temp RTV silicone gasket available. Sensor-safe, low odor, noncorrosive. Superior adhesion.

Ratings and Reviews

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4.9

28 product ratings

26 users rated this 5 out of 5 stars
2 users rated this 4 out of 5 stars
0 users rated this 3 out of 5 stars
0 users rated this 2 out of 5 stars
0 users rated this 1 out of 5 stars

Would recommend

Good value

Good quality

Most relevant reviews

See all 21 reviews

by iiperez112
Dec 03, 2018
Rtv
Just as a temporary fix, I used this in place of the exhaust gasket for my long tube headers on my 5.3 Chevy. Bolts were broke off in the head and I couldn’t get the gasket to seal. I removed it and put this on the head. Installed the header and the three bolts in the front. It worked! Very pleased. Good price and great stuff!!
Verified purchase: YesCondition: New
by ridgjohnso-9
Feb 16, 2023
Removable after use.
Used on a copper moonshine still to help seal cap to boiler body. Works pretty good and can’ be removed after use.
Verified purchase: YesCondition: New
by lllay7
Jan 02, 2019
Great high temp gasket maker
I used this stuff to seal off the interface between my turbo and downpipe on my 1987 Buick Grand National. It worked great.
Verified purchase: YesCondition: New
by tower1127
Apr 19, 2016
Get's the job done!!
Use it to seal the slip on connection to the end pipe in a sport bike... Too soon to say but it's been a month and rhe small leak that i had is gone
Verified purchase: YesCondition: New
by repairman_816
May 06, 2020
Works great
Have used it several times on my Harley Davidson I like the copper as it works better with extreme heat.
Verified purchase: YesCondition: New
by dmnin
May 11, 2024
The best RTV Silicone ever. Only one I use
The best RTV Silicone ever. Only one I use
Verified purchase: YesCondition: New
by robblades
Jun 07, 2017
Good for exhaust sealing.
I use Permatex Ultra Copper regularly to coat header gaskets, muffler connections, turbo connections, and other exhaust components and it works well.
Verified purchase: YesCondition: New
by augiedino397c
Nov 21, 2018
Good product
Works good and easy to apply
Verified purchase: YesCondition: New
by scubasteve-420
Nov 21, 2024
Stuff works great to hold my dentures in...
Stuff works great to hold my dentures in!!
Verified purchase: YesCondition: New
by 1950olivergm
Apr 05, 2019
Good stuff
Works good for sealing up exhaust manifolds along with a good gasket!
Verified purchase: YesCondition: New