Rit Dye Liquid Fabric Dye, 8-Ounce,  blue Denim liquid dye. Dyes cotton, silk, linen, rayon, nylon and acetate. Will also stain fiber glass and plastic. Perfect for all your redecorating, crafting and wardrobe needs. Washable only in cold water or dry clean only. Washable only in cold water or dry clean only.