
i just did one.fiber glass.i used auto air.cleared with a rattle can clear coat.
i have done other helmets an had a profesional urethane clear coated.i have sprayed laquer clear coat on auto air.acrylic clear coat from krylon rattle can works on auto air.frog juice clear coat works with auto air.
i blow dry the helmet just before clearing.warm it up a bit.i do not sand or scuff the auto air.i mite litely wipe down with a wax an degreaser.if im sure i did not handle the helmet i will not wipe down.
i also pin striped with auto air.thats fun on a hockey helmet.