We had this motorhome in a couple of years back because the gelcoat was leaching all over the windscreen and cab. At the time we acid washed and polished the gelcoat in the hope that it would resolve this issue however over this time it has started happening again. The owners requested us to paint the front and back mouldings to resolve the issue. The paint was colour matched to to match the original gelcoat colour. Although a big job to do it, it was well worth the effort and these sections look brand new.