![StepbyStep Auto Sanding | It Still Runs](/e69yszg/20.jpg)
StepbyStep Auto Sanding | It Still Runs
Cover the sanding block in 220grit sandpaper to sand the primer coat after it has dried. Use the same techniques as when sanding with the previous grit. The primer should be gently sanded to only knock down the very top layer. Sanding too much can make the .