Substitute for acoustical sealant?
I’m in possession of a box of Tremco TremPro JS-773 sealant. It’s a one-part, non-skinning synthetic butyl sealant. When I got the box of sealant (a while ago), I thought is was acoustical sealant that I could use for attic air-sealing and such. The key feature is that it’s supposed to stay somewhat gooey and not crack like most caulk does eventually. But of course it also has to attach to the bonding surfaces, which would be wood and/or drywall in this case.
The label says steel, aluminum, and fiberglass. Anyone know if this should work in this off-label application? If it were just one small tube of sealant, I’d just get something else, but I’ve got a bunch of the big 850 ml tubes, like to be able to use them if I can.
Climate zone 5, Michigan, if that makes any difference.
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