Gasket Sealer (Permatex)

Tue Jul 02, 2013 7:36 am

Hi all - when I was a young lad, I recall Dad using a product called permatex <sp> whenever he assembled anything with a gasket. What to you all use for gasket sealer that is available today?


Re: Gasket Sealer (Permatex)

Tue Jul 02, 2013 7:54 am

I usually look over the different sealers at the auto parts store and select one designed for the application. The two sealers that I keep on hand are Permatex high tack in a can with brush and Copper Coat in a spray can.

Re: Gasket Sealer (Permatex)

Tue Jul 02, 2013 10:46 am

I keep copper Coat on hand for head and manifold gaskets, and the RTV type silicone gasket compound for emergencies, but most of the time I do not use a sealer except for the head and manifold gaskets

Re: Gasket Sealer (Permatex)

Tue Jul 02, 2013 12:03 pm

Copper Coat and Permatex High Tack for head gasket and sometimes High Tack for gaskets that are difficult to align without using something a little sticky to hold it in place while the other half is mated up.

Re: Gasket Sealer (Permatex)

Tue Jul 02, 2013 3:25 pm

Permatex Aviation Form-a-Gasket. Comes with a brush. Originally, I thought this stuff was not meant as a gasket dressing, but the directions say it can be used on most types of automotive gasket materials and machined surfaces. I have been pleased with the results.

Re: Gasket Sealer (Permatex)

Tue Jul 02, 2013 4:01 pm

I used this on my Valve Cover gasket: Permatex Indian Head

Re: Gasket Sealer (Permatex)

Tue Jul 02, 2013 5:34 pm

I like the Permatex High Tack for most of my gaskets. I like the fact that it aids in sealing but doesn't dry hard the other sealers. If I need to remove a components even after a long time, I can remove the component without ruining the gasket. Also, like Rudi said, it holds the gaskets in place upon assembly.

Re: Gasket Sealer (Permatex)

Tue Jul 02, 2013 5:45 pm

Thanks all - I knew I get the answer I needed and as usual in short order. I'm gonna go with the Permatex High Tack. Amazone Prime Free Shipping - be here Friday. Gotta Love it.

Re: Gasket Sealer (Permatex)

Tue Jul 02, 2013 6:44 pm

Black RTV, for differential covers. Read the labels on the packs before purchase because there are several different products. Designed as a sealant for car differential covers. I use the black RTV on finals pans and the differential cover on the 154 instead of gaskets. Makes for a leak proof gasket.

I use some of the various RTV sealants. Most work exceedingly well, if the directions are followed and for the correct application.