Rust pitts

Thanks all

The method I am using is (i) sandblast (optional) (ii)etch prime (iii) spray with red oxide primer (iv) fill worst of pitting by smearing body filler over it with plastic scraper (v) rub down and repeat till surface is reasonable or else you're totally fed up with doing it (the latter will probably arrive first) (vi) spray with surfacer (a thick paint basically) rub down and respray surfacer again until you get fed up with it - eventually you might get a surface that is good enough to finally wet "flat" with 400 grit paper. (vii) spray topcoats.

It has worked reasonable well on a dash panel so far for me but some people don't like to use body filler and there may well be other ways to do it. I want to get a reasonable job but am not in search of total perfection.