Primer, Filing, Putty…
Make it smooth…
After the second coat of primer was applied, it was apparent there were some odd areas that are higher than they should be. These areas are mainly along the seam lines. I marked the areas, and will try taking them down…
I used a metal file on the high spots to aggressively take them down.
Then, glazing putty was applied to the areas that were filed.
Wet sanding with 500 grit sandpaper.