Guys
Coppercoat was made way back in the day as yes--a sort of sealer with the copper added to promote heat transfer with Steel Shim head gaskets
It is not the right product for the way you all seem to use it
The spray can Hylomar is the best head gasket sauce in the world--I have re-sprayed Cometics three/ four times and kept on using them--it restores the ability to seal the water--that is all it does
The Mr gasket multi layers suck!! Use Cometics or else
And if you do use steel shim gaskets the Hylomar is ten times better than CopperCoat--why don't you just use some Indian gasket sealer while you are at it