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Hey, Alex, this little help of mine is based on replacing a total of ONE headliner. :-) But it's bulletproof. Knock on wood.
Maybe it's like when I asked your advice on HTML coding: it's simpler, conceptually, than you might think; e.g.
- a stiff (fiberglass-strengthened) liner (backing board?) covers MOST of the overhead
- it intentionally leaves gaps at its edges and also at points in the middle, as around sunroof, etc. so that it can be shifted to fit... has a fudge-factor
- FABRICcovers the headliner (1) to give it a $$$ look, and (2) to cover (bridge) the gaps just mentioned. You have many choices.
- FOAM-backed fabric is commonly used to (1) give it that pimpmobile look? (2) help hide irregularities, whether bumps, or the bridged gaps at the edges, etc. You now have fewer choices, if you want foam.
- the fabric should be able to DISTORT along the warp and woof so that it can readily conform to hollows. (I fought this, and lost, when I used bulletproof Sunbrella [canvas] to do my headliner.) This also restricts your choices.
- Ha! To your question. You want it to stick? Use a 3M glue, as sold for the job. That's the good answer. A more radical answer is to leave out the weak foam layer! Then use any high quality glue you like, on some conformable fabric. (Which will, however, reveal more of the irregularities of the overhead to people who lie around staring at overheads.)
In a nutshell: the glue is not the problem. It's the foam. Especially as it ages, and weakens, with ozone, UV, wear and tear...
Hope this makes sense.
Gregg, Mpls
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