👉 Decolorizer is a chemical compound used in the production of paints, varnishes, and other finishes for articles such as wood, metal, plastic, or fabric. It's often used to remove color from surfaces before painting or coating them with a finish. Decolorizers are typically made by reacting a base (like lime) with a weak acid (like acetic acid). The reaction produces a white powder that is then precipitated onto the surface of the object being painted or coated.