Hi, please excuse the question, because of the diversity of the forum around car care I am totally beaten up. I want to bring my 4 year old car with black paint again something on front. There was never more than washing system. I plan to drive with him into an SB washing machine, foam in and clean it properly. Then I dry it with MF cloths. Then I want to polish it by hand with Sonax Xtreme Polish & Wax 3, then remove the leftovers with MF cloths and then seal it with Sonax Protect & Shine. Is the process so OK or do something wrong with it? The Sonax products were given to me, so I would also like to use them. Thank you for your advice!