Add a sparkling touch to your fabric projects with Speedball’s Blue Topaz opaque ink. This vibrant, slightly iridescent blue shade brightens dark fabrics with crisp, luminous prints.Supplied in a large 32 oz (946 ml) jar, this versatile ink is suitable for a wide range of materials including cotton, polyester, linen, rayon, blends, as well as paper and cardboard for flexible creative use. Its water-based formula ensures strong coverage without sacrificing the fabric’s softness and flexibility. When properly heat set, the ink becomes durable and permanent with a smooth, pleasant finish.Cleanup is simple with soap and water, and the ink is free from harmful solvents, low odor, and non-flammable. It carries the AP certification, guaranteeing it is safe for artistic applications.