Red Clay Stain Remover is a ready-to-use formula that safely and easily removes red clay stains from interior and exterior surfaces. Color fast, fabric safe. Water-based, biodegradable. removes red clay stains from brick, concrete, stucco, vinyl and aluminum siding, plastic, fiberglass, linoleum, fabrics such as cotton, linen and polyester, carpet and upholstery, tennis shoes and more. For more information , visit a parent website of Rust-Oleum or Truworth Homes.