"TAB Dude" wrote in message
news:2KInf.2483$pF.1564@trndny08...
The formaldehyde was not the real issue with that type of foam as an
insulation product. All sorts of things give off tons of formaldehyde,
carpet, your new car, some paints, and furniture. The problem with the
foam as insulation is that it shrank over time and thus allowed thermal
bypasses to form and total loss of R value. The Urethane form you get
(great stuff) is non shrinking and a different catalyst. For small air
sealing it is fine, but do not inject into cavities that can be damaged by
the expanding foam pressure. Use a low expansion (window and door) foam
for filling window cavities and other sensitive spaces.

TAB Dude

www.getenergysmart.org

I've used the Dap-Tex Insulating Foam Sealant. It's latex based, virtually
no odor, water cleanup, doesn't over expand.

www.dap.com

Bob