Sorry, but I can't tell you if it is fuel proof or not. I can tell you that you will have to pry the canopy off with a screw driver if you ever want to remove it! Hey guys, I have also been down this canopy road problem. This stuff works, & has worked for me for several years now. Just make sure that you have a tight fit all the way around, and apply a small bead from the tube after taping the canopy in place first. Apply between the canopy & fuse sealing the gap with a small bead. It dries clear & shrinks to almost nothing. Takes a couple of hours or so depending on how thick you applied. It don't take much, so again use sparingly.
Barry