The Rit DyeMore Synthetic Liquid Dye 207ml is specially formulated to deliver brilliant, permanent color to tough-to-dye synthetic fibers like polyester, acrylic, acetate, and nylon. This advanced, non-toxic formula requires the stovetop method to ensure the intense heat necessary for optimal pigment absorption and a fade-resistant finish. It is also highly versatile, allowing artists to successfully customize 3D-printed items, hard plastics, wigs, and synthetic fabric blends.