Thread: How I make fiberglass upholstery panels for strange shapes.

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Not a lot of progress to show here. The first coat of drywall mud has dried, and I have just sanded it with 120 grit paper then applied a second coat. This doesn't have to be perfect like it would for actual drywall repair, but its nice to have the profile close to where you want to end up. It is kind of a "pay me now or pay me later" type of thing. Drywall mud sands extremely easy when dried. Bodyfill, on the other hand is a real bear to sand. The surface which you see, will actually become the inside surface of the fiberglass panel.