Can I stack two pieces of Gasket Material to make a thicker seal?

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vinny11950

vinny11950

Minister of Fire
May 17, 2010
1,794
Eastern Long Island, NY
Trying to get a tighter seal on my Exhaust tube connection, and the original seal looked thicker. So while I wait on the original, I am wondering if stacking two thinner pieces will work?

Also, this gasket is on the other end of the pressure scale, meaning it takes positive pressure pushing out. Which makes me ask, how is it it doesn't leak, since it is fiber?
 
vinny11950 said:
Trying to get a tighter seal on my Exhaust tube connection, and the original seal looked thicker. So while I wait on the original, I am wondering if stacking two thinner pieces will work?

Also, this gasket is on the other end of the pressure scale, meaning it takes positive pressure pushing out. Which makes me ask, how is it it doesn't leak, since it is fiber?
Click to expand...

Being made of fiber doesn't mean that the fiber allows gases to pass.
 
Okay, I will admit I did I weird test by blowing air through the material. Probably when compressed it seals, but I am wondering.
 
In a pinch I used straight goop on the flange connection. Didn't hurt or leak. Later, I made my own out of the exhaust gasket material at the auto parts store. I really don't know why they used lytherm in the first place. I can see the motor gasket because of vibes, But here??

You could try goop between the 2 gaskets.
 
stellep said:
Probably not the best idea. This is a fire in your house.
Click to expand...

Actually the goop is a recommended sealant for venting.

Doubling up lytherm also is fine.

What would be best would be a single correct thickness gasket and an entirely different attachment method.
 
Buy a thicker Gasket and stretch it if need be to accommodate the thickness you want. I don't think one on top of each other would work very well or last very long. Also, the door might have an issue closing if the gasket is to big.
 
LIpelletpig said:
Buy a thicker Gasket and stretch it if need be to accommodate the thickness you want. I don't think one on top of each other would work very well or last very long. Also, the door might have an issue closing if the gasket is to big.
Click to expand...

Not that gasket.
 
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