+x Warren (Staff) - 7/29/2019 11:31:50 AMPolishing wise, start off with something like our NW1 Super Cutting Compound Black which is quite a good all round polishing compound and see if that gets what you need. If not then look at sanding as an option to flat the surface back and get it smooth again. NW1 can be used by hand with a microfibre cloth or on a polishing machine with a medium/firm pad.