Using Copper/Hylomar Spray on Headgaskets

[EVO-00X]

Here's an interesting read up on using copper spray on your multi layer steel headgaskets (i.e. Cometics). Some old school methods still rock on... http://www.dsmtuners.com/forums/cyl...64-why-not-spray-mls-headgaskets-discuss.html

After reading the 2 pages I can honestly say that MLS headgasket or not, contrary to recent industry practice, a light even coat of Copper/Hylomar Spray on both sides of the HG seems to be working without failure for a lot of DSM'ers

Who here is running a Cometic without any kind of spray? and who here is using spray? Any failures? Let's do a poll... Remember, this is for headgasket failure only... if your headstuds stretched etc then thats not the headgasket's fault :lol:

 

[EVO-00X]

So I take it that nobody on here has ever used copper spray on a headgasket before? :lol:

 

[JayRome]

only heard of it recently, but have never used any sort with all my builds

 

[JSTYLE]

i use either 3bond or holomar copper spray.. both work good.

Jon

 

[GVR40]

i used hylomar spray on my cometic, will let you know results soon...

 

[EVO-00X]

That 3bond white RTV sealant is apparently the shiz JSTYLE. It's used by an engine builder friend of mine for everything! (competition cars etc) including waterpump to block, oil pump to block etc and he reckons its never let him down with zero leaks to date.

I've been using a mixture of Permatex copper spray, ACL hylomar spray and Permatex black RTV hi-temp silicone for gasket assemblies in builds but if the white 3bond stuff can be used for everything then there's no point using 3 different products in future. Still using red and blue loctite for threads though and I'm never gonna give them up :lol:

 

[GVR40]

usually find that the white rtv stuff (3bond or whatever) isn't suitable for head gaskets, i use the ACL hylomar on my head gastket and permatex ULTRA grey for everything else

 

[EVO-00X]

ah OK GVR40, yeah the spray has been an old favourite for years and works a treat so I'd be sticking to a light even coat of copper or hylomar spray on headgaskets rather than using the threebond. The ultra grey and threebond is a favourite amongst builders so its good to know people's feedback on the same products. I've recently noticed Permatex have a product called ultra copper silicone RTV that sounds like its good stuff too (I dont think I've ever seen it stocked at the local parts store though??): http://www.permatex.com/products/Au...mum_Temperature_RTV_Silicone_Gasket_Maker.htm

 

[GVR40]

supercheap auto stock permatex ultra copper

 

[Missile]

i used permatex ultra copper on the entire hot side of my engine... well everything that came off with the td-05 upgrade... purchased through supercheap auto...

i have nothing leaking so i guess its the goods...

 

[iluszn]

I think that this arguement will have no winner.

people have no problems going either way. others do.

Some builders swear by using the copper sealer, others swear by not using it.

end of the day. What ever works for you and has worked for you, stick to it. if you want to try another way, good for you.

Personally, I have used both, no problems. I have torn heads off. cleaned surfaces replaced head gasket with oem and put back together without any issues. I do however send the heads away to be cleaned up and checked regardless.

 

[acedsm]

copper spray on a stock mls gasket reused 3 times over and over.

 

[Richard]

At my work we never used it for ages, then one of the guys who works there after working at a engine builder for a while said copper coat is the shit and must be used, he said put three layers on each side on the MLS gaskets, we never had any issues prior to using it and havnt had any issues since using it, He has since left, and recently another engine builder who we deal with has said it is unneccisary and don't bother using it, (my boss was glad to hear this as it is one less expence) So I doubt we will be using it at work again.
I personally don't think it is needed with a new MLS headgasket but if you were wanting to reuse one I think it would be benificial and also would be a good thing with stock headgaskets.
So like it has been said some say yes some say no.....

 

[bazeng]

copper spray on my headgasket now
previously no

difference, i cant say honestly.

it really doesn't hurt.

its good to use copper on the exhaust manifold gasket and inlet manifold gasket also

same goes with turbo gaskets..

so far, i have zero leaks from the motor..