As Glenn mentions, vinyl backed by open cell foam falls off because of
breakdown of the foam, largely a function of heat.
I replaced all such material with a closed cell foam material that looked
quite good, and after seeing how liquid contact cement started to dissolve
the material, as well as the strong fumes, I found a liquid water base
contact cement made by 3M. It can be found at auto parts stores--NAPA,
CarQuest--and while it may cost 2 1/2 times as much as the regular contact
cement you'd find in hardware store, I found it to have maybe 2 times the
coverage.
I had previously tried spray advesive, and while the coating was not heavy
enough to damage the foam, I wasn't really satisfied with it or the price of
how much it would take for a big job. And it also had the problem of fumes.
"cvj" wrote in message
...
Could someone advise me of an adhesive to attach a foam-backed Vinyl
Headliner to a plywood sheet? I am looking for something that is easy to
apply (spray can?) but at the same time does not damage the foam through
some kind of chemical inter-action.

Thanks in advance

Claus