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Kidoo's avatar
Kidoo
Explorer
Jan 28, 2015

Yellow stain on back of RV - How can I clean it?

Hi, I went through Chelly Canyon the other day and the roads where very muddy, yellow mud. The back of the RV became very dirty and I could not wash it right away, so it probably cooked on it. The sid...
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johnhicks's avatar
johnhicks
Explorer
Jan 29, 2015
You could try FSR (Fiberglass Stain Remover) available from a marine supply shop or maybe Amazon. It would probably take quite a bit but might work. Also I use Star-Brite fiberglass polish occasionally.

The gelcoat actually is porous. Be careful working it too much because you can polish through colored gelcoat down to white and sometimes virtually polish the gelcoat off.

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