I took a wire brush grinder attachment to mine removed the rust . The got some wire mesh n filler smoother it all of an sprayed with some hammerite an it looks spot on. Mine was rusted and had holes
1989 Isuzu Trooper 2.6 (3.1 conversion )
1990 Isuzu Bighorn Lotus Edition Hi roof 2.8td
1998 Vauxhall Omega Estate Elite 3.0 v6