Effective on all fabrics. It protects from water, soils, oils, bird droppings and environmental pollutants. Recommended for use on awnings, canopies, tents, patio furniture, cushions, umbrellas, spa covers, tarps, boat covers, bimini tops, hunting fabrics, camping gear, leather, synthetics and vinyl. Formula is non-solvent and non-silicon. One gallon covers up to 150 square feet.