That's a good question and I think might be different from shop to shop. The guys I posted about in London sandblast them before powder coat.What sort of pre-work is needed if your existing metal is not perfect?
Nothing that I have seen. I usually just take off the levellers at the bottom of the legs and any plastic on the back of the lockdown bar. Otherwise, they blast it back to metal anyway.What sort of pre-work is needed if your existing metal is not perfect?