Just started refurbing two spares I have in the garage. Had them lightly blasted to start with as one had been polished and need that roughness back to it. Few coats of Etch Primer, Few coats of RAL3020 then finished with 2 coats of Satin Lacquer. Block the top with 800-1200-2000 wet and dry. Stills needs going over with 2000 but finish is pretty good.