final sanding and masking then 3 coats of K36 high build primer. As expected the light grey primer revealed a few imperfections. Saved back the last ounce of K36 from the paint cup, let it thicken and applied it like a filler on the defects. Tommorow will sand, re-spray with high build, then hopefully shoot epoxy primer and color coats. Canopy work nearing completion!