Fiberglass repair question...
The day before yesterday in Bakersfield I pulled our 5er into a horizontal sign arm while turning and punched a hole through the fiberglass exterior and pushed out a section of wallboard inside. One ...
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I've fixed a few places on our 5th and it is just like any other body work fix. Since you hole is large use an epoxy resin and mesh in the bottom (towards the inside, then use bondo over it and fill the outside finish. Then use a color of paint to match. I have fixed holes up to 3 x 4" and they will disappear if you take your time and will be completely waterproof.
