Can you use an epoxy based paint to paint fiberglass reinforced plastic?

Yes . Be sure to sand the surface with 40-60 grit paper. Solvent wipe with epoxy thinners. Apply 1 or 2 coats solvent free epoxy.

Use a product called ARMORGUARD, It is the Worlds Strongest Epoxy Proven, Tested and Guaranteed, ArmorGuard is 100% solid, non toxic and odorless. look on www.ecosmartepoxysystems.com for more information