wrote in message
oups.com...
Only reason duct tape doesnt hold anymore is because american companies
are tightassed profit driven outfits who over the years have just made
their products cheaper by cutting back on quality. I know whole
subdivisions with duct joints sealed with gray cloth duct tape that are
still stuck after 25 years.

Yes...nowadays its best to use mastic tape....dont use the thin
foil....it lasts about as long as the cloth tape used today....


Two kinds of foil...one is cheap ****...really, and I agree with you
100%..it uses a rubber adhesive that sucks ass after about a year.
the other, is UL181-A and B rated..its about $40 a roll...now THAT works,
but the code guys here finally got smart, and even with it, you need to use
a mastic over it...
The mastic tapes nice too...but its a pain in the ass if you EVER have to go
back in...with the foil tape first, then mastic over the top of it, you can
just peel it all off at a later date if you need to, and if any screws are
covered, they come out clean and neat this way.