Auto Air Base Coat Sealer White and Dark are a low build, adhesive sealer coat. Base Coat Sealers have higher adhesion properties that most other Auto Air Colors. They cover well making them ideal for use as an initial coat. Once surface has been prepared, apply either Base Coat Sealer over the entire surface. Base Coat Sealer White and Dark can be used to remove small, minor surface imperfections to create a uniform even surface ready for color.