I recently bought a stormtrooper helmet and I want to toughen it up. Will there be any problem if I fiberglass the inside of the helmet? It is made of ABS.
No reason why you shouldnt be able to fibreglass the inside (although I'm no expert on ABS) as long as you remember to rough up the surface with some course sand paper so that it has something to cling to
mm.. What he said. roughen the surface up a bit before. you might also want to put a layer of polyester (resin) first and let that dry for a day before you add another layer of the fibreglass/resin mix.