The clearcoat that I used this time, and that I used several years ago for my cafe'd BMW, is a two-part clearcoat that comes in a rattlecan. It is a S L I C K
product. I found it at R&E paint supply, but you can probably find it elsewhere.... It has a button on the bottom of the can that you push, which injects the catalyst into the paint, then shake and use as any rattlecan. The can has a pretty good nozzle, it has a shelf life of about 24 hrs once activated. The nice thing is that it is a very quick-setting product, so you can get several coats on, wet-on-wet, for a great chemical cure.
I used it over several years on the other bike, with gas spilled on it, sitting in the rain/sun/weather etc and it stood up beautifully.... not bad for rattlecan!
This is a shot of the product that I took when I did the cafe....
Product is Spray Max 2K ClearCoat.
Try it, you'll like it!!!