After needle scaling,
1. spray on RustBlast (phosphoric acid) keep wet for 40 minutes and rinse with water to etch the surface or scuff with sand paper.
2. When dry 2 coats of RustSeal for permanent rustprotection.
3. On areas behind the sleeper/cab one coat of any automotive topcoat. For a tuff topcoat KBS Blacktop or MAXX.
i.e Two gallons of RustBlast $35.95 each
. One gallon of RustSeal. $145.95
. Two quarts of a topcoat. $48.95 each
Call me for a better price.
Double Mountain Manufacturing LLC