I want to flame my door panels and possibly the headliner and was wondering what the best adhesive to use without eating the foam. Thanks

Out of an aerosol can, 3M Foamfast

Be wary of 3M #77, they have recently reformulated it and it is rumored to attack foam. Try a test piece first, and be sure to let it dry real good before assembly. Part of the problem (I believe) is that people assemble the pieces to fast and the solvents are not allowed enough time to flash off.

Vince

Would you be spraying in the confines of the car or out in the open? I fix a lot of the sagging headliners and use the green spray adhesive found in most interior shops. It is sprayed straight out of a normal paint gun! The headliner backing is foam and it never attacks it too hard. I also sprayed the stuff on many items to see what damage it did. It turned out to stick everything together without noticable damage! I could find out what brand it is if you would like to try it! Also try the nearest swimming pool contractor....WHAT THE HECK!!!! Yep.... When installing a pool liner they spray a blue adhesive out of a can to attach a thin foam to the sides before the liner goes in. I helped with a 35X70 foot pool and we used a case of the stuff!!!! Good luck!