DecoArt Americana Decor water-based paints and mediums let you create stunning home decor and furniture pieces. Metallics 8 oz Amethyst- Add the highest metallic finish to home decor projects with this advanced, finely pigmented formula. Cures to a hard finish. Covers approximately 12 square feet with two coats. Water based, permanent, fast drying, and cleans up with soap and water.