Canopy glue will seal the outside atmosphere out. This can result in your canopy fogging in the warm sun similiar to a plant terarium effect. To fix this drill a tiny hole in the canopy near the back. Make sure that its on the opposite side of the muffler exhaust. You can alo use a hot pin to melt a small hole to do the same job. I like to use RC56 canopy glue. COmes out of the tube white and drys clear. Will glue almost anything to anything and is very nice to work with. Only thing is, this glue takes overnight to dry.