They are probably number 2 finish 
they are usually covered in ■■■■
shuttlespanker:
wildfire:
mine where bad when i took truck over not cleaned for 2 years. i started first with a good acid cleaner pressured washed that off, then got some 1200 grit wet and dry paper went over all the pitted and stubben area’s, then out with the brilo pads. next thing is a good metal polish like peek or another one is marine polish,(not that keen on autosolve) polish them up and then a good coating of turtle wax makes it alot easier to clean next time
oh but don’t try this on staybrights buggers them up
did you not notice the thread title until after you wrote all that?
yes he asking about durabrite not staybrights totally different staybrites are laquer coated
wildfire:
shuttlespanker:
wildfire:
mine where bad when i took truck over not cleaned for 2 years. i started first with a good acid cleaner pressured washed that off, then got some 1200 grit wet and dry paper went over all the pitted and stubben area’s, then out with the brilo pads. next thing is a good metal polish like peek or another one is marine polish,(not that keen on autosolve) polish them up and then a good coating of turtle wax makes it alot easier to clean next timeoh but don’t try this on staybrights buggers them up
did you not notice the thread title until after you wrote all that?
yes he asking about durabrite not staybrights totally different staybrites are laquer coated
it will also do the same to Durabrites, it doesn’t take much to scratch them
the process you have described it good for cleaning up knackered mirror finish or machine finish wheels