Copper spray...

[DorianL]

Will soon be slapping on my some head gaskets...

Now I have read here and other places that it is a good idea to spray gaskets with copper sray before installing (still wet) under heads.

Why is this helpful?

I take it that any decent autoshop should carry copper spray, right?

D.

 

[grumpyvette]

it fills in micro gaps in the head gasket/cylinder head contact area, and forms a semi flexible barrier that's highly heat resistant.
Ive always sprayed both sides of head gaskets and installed them damp and had good results (keep in mind I mostly use solid copper head gaskets or embossed stamped metal shim head gaskets or composite head gaskets with metal surfaces)

youll occasionally find uses for a high temp rated silicone sealant
like ultra-copper that has about twice the temp tolerance of the common black RTV

viewtopic.php?f=50&t=1277&p=2737&hilit=copper+spray#p2737

viewtopic.php?f=44&t=805&p=1171#p1171

viewtopic.php?f=50&t=827&p=1231&hilit=copper+spray#p1231

viewtopic.php?f=32&t=10376&p=42831#p42831

don,t forget to dip bolt threads in sealant before assembling heads to prevent coolant seeping up head bolt threads