Best Gasket Sealer ?

[Sea Rider]

If in need to perfectly seal a head gsaket between both mating surfaces, the ones without the double side sealer coating OEM ones comes factory delivered with, which aviation brand sealer and type would you guys recommend

How about this one : Permatex 80019 Aviation Form-A-Gasket No 3 Sealer ?

Happy Boating

 

[Chris1956]

Gee, I think all gasket sealers would burn on a head. Most head gaskets are asbestos or composite metal.

The only exception is the heads on the loopcharged 60* V motors from the nineties, which use an oring as a head gasket. What motor are you discussing?

 

[Sea Rider]

Gee, I think all gasket sealers would burn on a head. Most head gaskets are asbestos or composite metal.

The only exception is the heads on the loopcharged 60* V motors from the nineties, which use an oring as a head gasket. What motor are you discussing?

It's a 2 stroke 300 CC OB. According to the product info can be used to seal gaskets. It's bit thicker than lacquer, easy to apply. Holds up to 400F temperature.

Also found this one : Permatex 80062 High Tack Gasket Sealer ?

Thanks,

Happy Boating

 

[Faztbullet]

That's fine to use.....

 

[Sea Rider]

That's fine to use.....

Will order one can, thanks.

Happy Boating

 

[Scott Danforth]

you dont already have a container of Permatex 1, 2, and 3 (aviation) in your tool box along with RTV black, blue, gray and copper and some tef-gel, locktite 242 and maybe some pipe dope?

 

[Sea Rider]

Nope Scott, I'm not that Pro mechanic..LOL!! Usually order stuff when in need of something special for a specific task such as this one.

Happy Boating

 

[Scott Danforth]

Pros get paid

I turn wrenches as a hobby

 

[crazy charlie]

Hi tach permatex aerosol

 

[Sea Rider]

Hi tach permatex aerosol

Thanks, but have already ordered a much cheaper Permatex 80019 form a gasket aviation stuff, will see how it works..

Happy Boating

 

[Lou C]

Does the OEM recommend sealer when replacing the head gasket? I know when I replaced the head gaskets on my old 4.3 with Fel Pro marine gaskets they did not recommend sealer but getting the sealing surfaces perfectly clean.

Ps I would not use any sealer that has copper in it due to the possibility of galvanic corrosion between the copper and the aluminum head/block.

 

[Sea Rider]

If OEM should not, comes with a 2 sided sealer coat that melts when engine heats up, this particular gasket comes without, will be just a thin layer coat at both sides with included can brush.

Happy Boating

 

[dwco5051]

you dont already have a container of Permatex 1, 2, and 3 (aviation) in your tool box along with RTV black, blue, gray and copper and some tef-gel, locktite 242 and maybe some pipe dope?

With at least two of them with no cap and too hard to use, one tube split and all over the tools in the top tray, and the pipe dope with a loose lid making everything in the bottom tray sticky.

 

[Sea Rider]

With at least two of them with no cap and too hard to use, one tube split and all over the tools in the top tray, and the pipe dope with a loose lid making everything in the bottom tray sticky.

Those materials should be stored away from a tool case, happened same with a small can of black paint not sealed well and the spill covered some of my most used tools. Bad music..

Happy Boating

 

[jimmbo]

Look carefully at the gasket for any 'Do Not Use' writings. Sometimes sealers cause leaks, or blockages