Bare aluminium needs etch primer ,this is usually a 2 pack paint , you don,t want to mess with this stuff yourself. If you are serious about painting a caravan then go to a commercial paint spraying outfit with the right facilities . look for a lorry painter or coach painting firm . as for paint its usually an industrial and cheap polyurethane product £30 a gallon . Take it from a paint sprayer with over 20 yrs behind him . the most expensive part of this is labour . as for polish and mopping a caravan £100 ! wish i.d have thought of that ffs!!
michael , auto cosmetics and graphics, May 2009