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hvac putty same as fire block fb 136 ?

Posted by suzie29 (My Page) on
Thu, Jul 14, 11 at 11:28

I couldnt find any hvac putty, will Fire Block FB 136 work just as good. This is being used for sealing several leaks in our hvac system.
ty
suz


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RE: hvac putty same as fire block fb 136 ?

Are you trying to seal connections between your duct work? If so, then consider using duct mastic. This is what professionals use.

Here is a link with a video on how to use it.

Here is a link that might be useful: How to Seal Ductwork


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RE: hvac putty same as fire block fb 136 ?

In our garage is a box with a hot & cold line going into it. I think its where the ac coils are.? Where the lines go in & on the corners there are small air leaks. I just need something that can handle heat & cold & fill very small holes/cracks. I could not find what my father suggested, hvac putty, I was told fire block fb 136 would work, but I dont trust them.


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