Head Gasket Sealer

rodbolt

Supreme Mariner
Joined
Sep 1, 2003
Messages
20,066
Re: Head Gasket Sealer

DHadley.<br /> I had the same issue some years back. I think the stuff was called hi-tack. anyway that was the one and only time for that trick. now its just adhesive M or perfect seal:) :)
 

DHPMARINE

Captain
Joined
Dec 16, 2003
Messages
3,688
Re: Head Gasket Sealer

All..... Awhile back BRP was sending out 3M yellow adhesive for type M.Recently the same number part gets you 3M,but it seem to be the same brown stuff I hve been using for years.<br /><br />DHP
 

rickdog67emtp

Petty Officer 3rd Class
Joined
Mar 13, 2004
Messages
81
Re: Head Gasket Sealer

Would indian head shellac work? Its brown and applies with a brush. If not, what would napa carry that would work good for the head gasket?
 

rickdog67emtp

Petty Officer 3rd Class
Joined
Mar 13, 2004
Messages
81
Re: Head Gasket Sealer

BTW, im working on a 1987 omc 150 v6 crossflow. Also, this is a sierra head gasket from napa.
 

Marc J.

Petty Officer 1st Class
Joined
Mar 16, 2004
Messages
267
Re: Head Gasket Sealer

Rick, I went on the hunt for the OMC gasket sealer or the Mercury perfect seal. The local dealers said they used it themselves but usually never sold the stuff. The OMC dealer offered to order me some, the Mercury dealer didn't. I did find a similar product at a parts store by Permatex. It's Super "300" form-a-gasket sealant. It says it withstands pressures up to 5K psi and can be used on heads, seals, cover plates and housings. I see that I-boats carries it too. Would you guys consider this a good substitute?
 

rickdog67emtp

Petty Officer 3rd Class
Joined
Mar 13, 2004
Messages
81
Re: Head Gasket Sealer

I used the shellac, worked so far. I couldnt find anything else that would work.(It was a Sunday)
 

realboats

Petty Officer 2nd Class
Joined
Apr 24, 2004
Messages
116
Re: Head Gasket Sealer

73, how did the Permatex 300 work for your heads? Do you know what the difference is between the 300 and Aviation Form-A-Gasket? I used OMC gasket sealer on my head gaskets, but it seems watery and weak compared to the Avaition stuff. It worked fine, though.
 
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