hi people as title suggest im looking at cleaning and then undersealing my car before the winter really sets in first of all what should i use to clean the underside up before paint i got some standard thinners from work to test out and it brought it up lovely but dont know if thats what i should be using also what should i use to actually paint it with ill be doing it by hand as my compressor is foookd cheers in advance also havent got a great deal of free cash at the minute so trying to keep it on the cheap if pos