hvac putty same as fire block fb 136 ?

suzie29July 14, 2011

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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mike_home

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

    Bookmark   July 15, 2011 at 11:43AM
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suzie29

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.

    Bookmark   July 15, 2011 at 3:08PM
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