Yes it will go on nicely on the fibreglass canopy. It doesn't like oil so please make sure that you wash off any mold release oils thorougly. You can clear coat it as well. As you are aware the alcohol from the fuel will make short order of the paint so do a good job sealing it. There are also acrylic agents that you can add to the paint that will make it dry slowly so that you can work on it a little longer ... Acrylic paints dry very quickly. You can get some beautiful colours from the acrylic paints. Cadmium Blue was always one of my favourites. Good Luck Z!