Stain Free is a one part stain remover designed to alter the structure of stains by removing, oxidizing or making them disappear. It is ideal for use with mustard, furniture & wood stains, shoe polish, urine contamination, coffee, vomit, pigments and other staining materials. Not recommended for natural fabrics. Stain Free is self-neutralizing and requires no rinsing. Best results are found if product is covered or remains wet for longer saturation.