Gray, no need to wet sand before primer, …..lightly scuff your repair area and how ever far you’re gonna apply primer……then wipe with sparingly with alcohol to degrease and pick up stray dust ……apply one medium wet coat of primer, and allow that to shrink & cure ….usually overnight, or sped up with a hair dryer ( 2-3 hours hard cure ) ….do not wet sand the primer!…this is your golden opportunity to work on top of primer!…lightly block the area in one swipe or two if needed….now read your primer…..high spots, the primer will be removed, low spots, the block won’t touch them……let’s see your best shot buddy!…
Pat
