2. Painting the cab was actually a three-step process. First, it was sprayed with PPG sealer. Then it was shot with three coats of PPG Vermillion Red paint. Finally, three coats of PPG DCU 2002 clearcoat with PPG DCX61 clearcoat hardener was sprayed on. Wells applied all of these coatings while wearing a VOC-approved respirator and a hooded paint suit. The paint booth featured an explosion-proof exhaust fan with filters.