To permatex or not to permatex?

Rich Bowes

Rich Bowes

Member
I'm replacing my car's head gasket, and I've gotten some conflicting advice. Should I or shouldn't I spray the new gasket with Permatex?
 
Are you talking about their Hi Tack product??? If so I use it on all my gaskets to help keep them in place when assembling. For those that don't know what it is, it is a spray on adhesive. It's red in color. I am changing out a leaky valve cover gasket on an OT vehicle as I type this and I just used it. I use it all the time.
 
It depends on what gasket you are using. That said on the copper gaskets I use the copper spray sparingly. I am not a big fan of Permatex from past experience. I prefer Yamabond.
 
Rich Bowes said:
I'm replacing my car's head gasket, and I've gotten some conflicting advice. Should I or shouldn't I spray the new gasket with Permatex?
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Hey Rich,
As said...depends...on gasket used. What you using for head gasket , i.e.- head gasket composition :confused:
 
permatex is junk, unless you like scraping off gaskets, joes 31 is right on yamabond and copper spray, (yamabond only sold at Yamaha motorcycle shops)
 
I will be using a copper head gasket. I take it spraying is a yes, but what to spray is now the question. Yamabond is one suggestion. Any others?
 
yamabond is not a spray (use on other gaskets and very thin also on bolts such as rear end bolts) copper coat comes in a spray can,follow the directions on the can, remember more is not always good,
 
Snyder's has the spray you need for the head gasket. As machine girl says don't overspray. A light coating is fine. You don't want it to ooze into the water jackets and clog things up.
 
I put them on dry. Never had a problem. If you are doing a gasket that requires some type of adhesive I use a dab of grease to hold until I can get all the bolts on.
Permatex is junk, do not use, dries up and causes leaks.
 
Rich Bowes said:
I will be using a copper head gasket. I take it spraying is a yes, but what to spray is now the question. Yamabond is one suggestion. Any others?
Click to expand...
ive used that copper spray gasket stuff on modern cars head gaskets and still holding great. i used it on my model A's engine with copper gasket but only been ran an hour or so but seemed fine.
 
Rich Bowes said:
I will be using a copper head gasket. I take it spraying is a yes, but what to spray is now the question. Yamabond is one suggestion. Any others?
Click to expand...

Ok, then I'd use copper coat...on both sides ! Speak with gasket maker representative , tell them your using one of their copper head gaskets. If the company is 'BEST', you will be advised as I have said.
 
I have used a good coat of aerosol silver spray on a copper gasket. Helps to seal water leaks too. Also works great when a copper gasket needs to be reused in an emergency.
 
flatford39 said:
Are you talking about their Hi Tack product??? If so I use it on all my gaskets to help keep them in place when assembling. For those that don't know what it is, it is a spray on adhesive. It's red in color. I am changing out a leaky valve cover gasket on an OT vehicle as I type this and I just used it. I use it all the time.
Click to expand...

Be carefull not to get any on the keys of your computer keyboard. Smiley face.
 
I just did the head gasket in mine. I used the copper gasket from Bratton's...no special sealants.

Based on Pop's advice (and I've learned better than to question him) I just smeared a little motor oil on the top and bottom of the gasket before installation. Pop says it allows it to slip around until everything finds the spot it is happiest in.

I can't say for sure if the logic is right, but it went in no problem and sealed perfect.

Oh, and be careful not to over-torque the water-neck studs. It is easy to snap off the tangs. Pop had me back off the torque wrench five pound for those two.
 
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