Ferocity02

iTrader: (60)

Well, how much of this stuff do you use. A light coat once over, or several thick coats so you get a nice copper color? Never used it before. Thanks!

dalejr8ls1

iTrader: (1)

I used just enough cover the gasket, so the whole thing is copper looking, dont put so much on that it starts dripping but enought to cover both sides. GM MLS gaskets or Cometics?

Ferocity02

iTrader: (60)

Cometics, they say to install them dry, but everyone here seems to spray them down.

ShevrolayZ28

iTrader: (4)

I installed mine dry. I did make sure the deck was spotless.

dalejr8ls1

iTrader: (1)

I installed them w/ copper spray, under the pressure they are put under it doesnt matter, but it seems to be an insurance policy in a way...do it to make sure that baby is sealed.

Ferocity02

iTrader: (60)

The thing is I might have to swap the stock heads back on for smog, so I don't want to deal with a sticky mess when that time comes around.

Ryne @ CMS

iTrader: (10)

i sprayed my cometics, and after a few thousand miles i tore all down, and i noticed that the cometics started to eat into the heads, not good. my machine shop told me that its a common problem when people spray the cometics with copper spray, he said install dry, with a good flat surface.

DaddySS

Interesting, since the copper spray has been used on aluminum heads for years, were they eating chemically or from friction of expansion and contraction?

02ZOh6

I installed mine dry. No leaks so far.

Ferocity02

iTrader: (60)

I'm going to go with dry. If they leak I will take the heads off and spray them.

redtail2426

iTrader: (10)

copper spray doesnt eat aluminum

ArcticZ28

iTrader: (14)

Sounds like the best bet if you have the patience and time to pull em off again if they leak. I have never had a problem with mine and I installed with a light coat of spray. And I've never heard of it eating away at the heads or block.

JMBLOWNWS6

iTrader: (17)

The cooper coat cam right off easliy when I removed my engine from my car with spun rod bearings. And was easy to clean off.

silverZ98

iTrader: (6)

whould i be ok to use some of these on my new GM MLS gaskets just ot be on the safe side?

DaddySS

Not necessary, the GM MLS have sealant already installed as part of the gasket and are not prone to leaks.

OUTLAWZ RACING

iTrader: (9)

Same here I used copper spray and when I did a head and cam swap again It took a simple wipe down with carb cleaner

Black Plague

iTrader: (13)

That is the way I did mine with the permatex copper spray.Make sure she stays sealed up!

Ferocity02

iTrader: (60)

Well I went ahead and sprayed mine with the copper stuff. I figure if it's easy to clean off then what the heck.

MiaSSmaro98

iTrader: (9)

so u guys dont recomend the copper spray on the gm mls gaskets

JMBLOWNWS6

iTrader: (17)

Thats what is on my 6.0L gaskets bro!