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Duct sealing JohnnyC 12-21-2007
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Posted by JohnnyC on December 21, 2007, 10:10 am
Last night on "Ask TOH", they had a guy who showed how to seal FHA duct
work. Are there foil tapes available to a homeowner that are very high
grade? Is the stuff at the BORG good enough to do the job?
.
One more...this is heating season in NE. How long does it take for duct
sealing mastic take to dry?

Thanks.



Posted by lp13-30 on December 21, 2007, 11:34 am
What is your ducting made of? If sheet metal, I would imagine that
there are tapes at the box stores that would be satisfactory. The main
thing is that the surface MUST be perfectly clean and dry for it to
stick properly. The duct sealing mastics I use dry within a couple of
hours, but then I'm in S.Tx, so it may take longer at your lower temps,
and of course it will also depend on how thick it is put on. Larry


Posted by J.A. Michel on December 21, 2007, 12:25 pm

> Last night on "Ask TOH", they had a guy who showed how to seal FHA duct
> work. Are there foil tapes available to a homeowner that are very high
> grade? Is the stuff at the BORG good enough to do the job?
> .
> One more...this is heating season in NE. How long does it take for duct
> sealing mastic take to dry?
>
> Thanks.
>
>

BORG tapes can be good, but they have cheap crap too. Make sure the tape
has the UL mark and is listed. Natulusha tape (not sure how to spell it) is
good stuff.


Posted by Red Green on December 21, 2007, 3:08 pm

> Last night on "Ask TOH", they had a guy who showed how to seal FHA
> duct work. Are there foil tapes available to a homeowner that are
> very high grade? Is the stuff at the BORG good enough to do the job?
> .
> One more...this is heating season in NE. How long does it take for
> duct sealing mastic take to dry?
>
> Thanks.
>
>

For tapes check out http://covalenceadhesives.com/Search.aspx

The are the same people that make Polyken that you often see pros use.
They make Nashua as well.

Specialty Search will very nicely walk you through a requirements menu
and give you the products that fit. You can even specify UL
requirements.

Posted by Calab on December 21, 2007, 3:53 pm
>
>> Last night on "Ask TOH", they had a guy who showed how to seal FHA
>> duct work. Are there foil tapes available to a homeowner that are
>> very high grade? Is the stuff at the BORG good enough to do the job?

As long at it's FOIL and not that grey cloth stuff you should be fine.

>> One more...this is heating season in NE. How long does it take for
>> duct sealing mastic take to dry?

The foil is pretty sticky to start with. Never had a problem with it letting
go at all.



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