I recently detailed my girlfriends car and I put Adams Graphene Ceramic Spay coating on it for protection and it’s hydrophobic properties. Her dad thought it looked so good. He recently asked me if I could put that spray coating on his camper that he just bought. His campers exterior walls are made of a plastic feeling like fiberglass. It isn’t super shiny like a cars paint. I was just wondering if it is something I can put on his camper. I see where Adams says you can put it on anything. Is it safe to put it on there?