I was a PPG and Dupli-colro man until my bud gave me a sample of Kirker Automotive Fisnishes Black Diamond series Low-VOC. I used the primer, base and clear. All covered good and you can tell they are good quality. If you want to see more about the Kirker Automotive Finishes Black Diamond series go to www.championmusclecars.com When you try them talk about them here.