Copper spray gasket

[nismou20]

Under what conditions would one use this? I understand under most circumstances they say don't use any adhesives when doing head gaskets R/R.

[greydog]

I use Copper Coat on the head oil pan water pomp and front cover gaskets. Trans and diff gaskets too.
Dan

[fj20spl311]

I think you don't use it graphite gaskets.

[nismou20]

So Greydog, you spray it right over the Headgasket on both sides? I understand it promotes heat transfer? So, on water pumps you use strictly this and no other silicone RTV?

[greydog]

Correct to both. I really don't like silicone. If you sealing surfaces are good you shouldn't need silicone.
Btw I use the b r ish on Copper Coat more than the spray. Easier to control...
Dan

[C.Costine]

The problem with silicone seal in motor assembly is that sometimes a little too much is used and it squeezes out on the inside and an oil passage ends up getting blocked.

[jrusso07]

I used the spray copper sealant on the head gasket, not on the head or block itself Sprayed both sides, let dry to a tacky touch and install.never had a pronlem. Used on my U20 and L18.

[greydog]

Yup. What Joe said.
Dan