Head gasket

[Jasonking]

Hiya all, is it viable to use any type of gasket sealer on new head gasket? Does anyone use a particular type with success?

[Spider]

I'm loathed to as most have a sealant on them that's heat activated. Putting anything else on them can interfere with that.

Having said that, when I have made annealed solid copper head gaskets, I use spray on Hylomar on them.

[atm92484]

I'll second Spider - depends on the headgasket but if I do it is spray Hylomar.

[Jasonking]

Can you use spray Hylomar on today’s copper gaskets? And do you coat both sides?

[Rolandino]

I would never spray anything on a copper head gasket. Leave it in half an inch of water for 3 hours and then fit.

[swifty]

I’ve been using the Minispares copper head gasket with wellseal and have had not a single problem … Shirley

[Jasonking]

And is that using Wellseal on both sides of the Minispares gasket?

[swifty]

Yes on both sides , once applied leave for 15 minutes before fitting . ,,,, Shirley

[Jasonking]

Cheers, thanks a lot

[MiNiKiN]

I would never spray anything on a copper head gasket. Leave it in half an inch of water for 3 hours and then fit.

What is the reason behind this custom?

[Rolandino]

Its supposed to swell up the material in betweeen the copper sheets. It seals better