I used 3M #90 , (green can ). I liked the adjustable nozzle, good spray with minimal overspray and good tack. A little short on work time, about 10 minutes but easy to reapply (I live where it is hot all the time.) I put it on the insulation and on the surface and it held well. Cover dash and interior for possible overspray.
I used a jute material, not really thick but the bows push up on what you use so I see no reason not to use the bubble foil. I thought I would get more sound deadening with the jute.
Watch for any gaps at the quarter windows and at the A pillar. Use original type padding Usuall puffy cotton type, above quarter windows and at rear window, (mine was missing). You may need some foam, about 1/2" thick to apply in smaller areas. I observed gaps at the quarter window forward toward the door (example by the interior lamp, both sides) on a finished car before I did mine. I got a little gap at the top of A pillars by the visor to windshield, not bad but if I had thought to put foam it would have been a little nicer.
I agree that contact cement (Welwood) is good. But large areas need a spray.
sorry if TMI
Getting ready to put in my headliner pretty soon, Has anyone got any suggestions as what type glue to use for glueing insulation to the roof. I have used several types lately and "contact cement" is the only one I've had any luck with. I hate to think about doing all this and then the insulation come loose. I also have some of what I call "bubble pack" with the foil on both sides but I'm thinkin' its too thick. Any suggestion as to what to use for the insulation. Thanks a bunch.
