I read it in the directions that came with the landing light kit I got from Vans. The kit gives you two little pieces of foil to put in the tips near where the lights are. I got the two little projector type lights per tip. The bulbs are real close to the fiberglass and I guess they get pretty hot. They give you directions on installing the lights and the foil and it says use plyobond. I saw that it appeared sticky under the paper backing. I can't see using plyobond on top of the sticky backing? Wierd? I guess I'll try just sticking it down by itself and see what it looks like. I never used plyobond I don't know if it's a spray or tube or what. Thanks for the responce guys.