Aluminum bases are available in three grades — fine, medium, and coarse. They are highly reflective and intended as an undercoat for Candy colors, and may also be used alone for an aluminum-like reflective finish. They cover quickly, and often only one coat is needed. Apply over Base Coat Sealer Dark to insure proper adhesion. They are made with heavy metallic flakes. Stirring may be required, in addition to thorough shaking.