bird_dog0347 10+ year member
Member
They need to put enough layers of FG to keep it from flexing. Once they have a solid surface, it needs to be prepped perfectly and use a good primer. Then they need to add a flex agent to the paint before they spray it. Any automotive paint shop should be able to get you what you need with 0 problems. If they can paint the plastic bumpers on the car without them flaking, they can do fiberglass.