All purpose pressure wash concentrate removes dirt, grime, grease, oil and stains from algae, mold and mildew. Great for: automobiles and RVS, patio furniture, garage doors, playground equipment, building exteriors. Surfaces of use: ideal for use on brick, stucco, concrete, cement, asphalt, fiberglass, tile, stone, aggregate, metal, plastic, wood, vinyl. Use with: pressure washer on-board tanks and with siphon hoses or manual pump-up sprayer applications. Makes 25-gallons of solution: apply solution using low Pressure spray nozzle or pump-up sprayer, let product to penetrate soil up to 5-minutes (do not let air dry) and rinse with water using high pressure spray nozzle . For light soils: mix 1-gallon of water with 5 oz. Of all purpose pressure wash solution for heavy soils: mix 1 gallon of water with 20 oz. of all purpose pressure wash solution.