larrynew
Well Known Member
Anyone have any experience spraying Sherwin Williams P60g2 wash primer over NAPA 7220 self-etching primer? Searched the archives and couldn't find that specific question. I'm close to spraying the P60g2 on some exterior parts and need to know if I need to strip the 7220. In addition to all the mating surfaces, I used 7220 on other places early in the build like the rear spars on the vertical and horizontal stabs.