Headliner material bonding question

[n0c7]

I'm redoing my headliner in my 2g. I've pealed off the old nasty fabric and scraped all of the foam stuff off so its just a fiberglass mold now. I purchased some nice black velvet but its thicker and a bit heavier than the old stuff. I followed the tech article http://www.dsmtuners.com/forums/showthread.php?t=106056
on try one. I used the 3M stuff he used, but I only sprayed it on the headliner and not the new fabric because the spot I started on was tacky and drying before I was even close to finishing spraying. I worked it on and it looked good, then i noticed a corner was flapping up so I went to spray it and the nozzel was crooked and I sprayed it all over the fabric Anyway, I tore it all off and only a few spots actually stuck to the fabric. The spots that stuck stuck very well. My question is, if I have 2 people and 2 cans of the stuff, 1 person spraying the fabric and another on the headliner mold, will it stick? Will the fabric be too heavy?

 

[Defiant]

It's contact cement. You coat both sides, let dry, and press together. It's not re-positionable, so it's good to have someone help aim.

 

[n0c7]

I tried it today, I coated the entire fiberglass mold piece and some on the fabric, then pressed together. Seems to be holding up, I'll take a look later tonight. Only small problem I had was a couple of bubbles in the spray that slightly soaked through, so two small spots are pasty. I'm sure I can clean it up though.

 

[92awddsm]

If you are using the 3m trim adhesive, you have to hold the can about 15-20" away before you spay. If not, you will get soak through.

 

[n0c7]

If you are using the 3m trim adhesive, you have to hold the can about 15-20" away before you spay. If not, you will get soak through.

Found that out after the two small spots

 

[n0c7]

Speaking about soak through, is there any way to clean it up? As mentioned, I've got two small spots. Is there any chemical/method I can use to get rid of it without wrecking the adhesion or discolor the material? I used black velet.