[Pontirag]

The product I was refering to above comes in a spray can and comes out looking like a cream color and hardens to a yellow color. works ok for a while on clean surfaces but crystalizes to very hard and turns to dust.It was made by 3M but I cannot recomend that. I have seen beautifle headliners with insulation flopping around behind them that really ruin the looks of the interiour.

. In the aircraft industry we used this stuff By 3M that was like a black RTV sealant. we used it to seal gaskets around the doors in aircraft. (pressurized cabins)It worked very very well You must clean off any old sound deadener otherwise it will stick to that but the old sound deadener will peal away from the roof metal. Its ok to have a rough surface on the roof metal, even a little rust does not hurt but maybe clean off anything loose with a scotchbright pad...just to remove the loose stuff. then apply this stuff and it works very well for long time.

I wish I knew what it was called but it worked very very well. I would contact 3M or look in the aircraft spruce and specialty company's catologe. it was about 8 bucks a tube