Choose size below. 10-pound pails are a great buy if you are doing a few trailers.
F9 is the coarsest Nuvite grade normally used on vintage trailers. F9 is used where the surface has heavy oxidation, or has been damaged by corrosion, has pitting, or has been sanded or scratched by abrasive cloth. Many people like to start with F9 when they have heavily oxidized trailers.
It is always necessary to follow Grade F9 with Grade G6 or Grade C for further surface preparation prior to final finishing with Grade S.