Hello All, I painted a truck a year ago with single stage paint in my garage. The paint looked and shined great. My work was not very good since I did not block sand the proper way. Redoing the whole truck again. I put new seam sealer in the gutters and around the rear doors and the front body seam between the top and front windshield. Did the new seam sealer before the primer and new paint. So how do you take the shine off the new paint so it will stick with out tearing up the seam sealer and since you cant get into the tight spots. Also around the windshield rubber and body grooves with out tearing up the windshield rubber? Thanks RB