Others have certainly done it on the forum - search on wax. I asked Julian to do mine as the truck had a lot of superficial rust following sitting in a sea container back from Capetown with previous owners. My rationale was to get it done propoerly first and then I can do the following coats when needed. It isn't especially technical, just messy. One of the Dinitrol sprays goes into cavities well and wicks and the other seals the underside - I can get the numbers if you need them.