The proprietary formulation of krud kutter deck and fence cleaner contains "sporex", a unique additive which removes tough stains from mildew, mold, algae, fungus and moss, and leaves the surface completely clean. In addition, special surfactants penetrate the surface to safely and easily dissolve the toughest stains from dirt, oil, grease, bird droppings, tree sap, and acid rain. Even removes gray weathering on wood, chalking and oxidation. Directions for pressure washer application: wet the surface to be cleaned, prior to applying the product. Place detergent application siphon tube and screen filter directly into container. Open meter valve (if applicable) for maximum product flow. For reservoir machines, pour product (full strength) into pressure washer. Spray at low pressure onto a wet surface. On vertical surfaces, always spray from the top down. Allow product to remain on the surface for 3 to 5 minutes to penetrate. Do not allow product to dry on surface. Remove siphon tube from solution and rinse surface with high pressure spray thoroughly. Flush siphon tube with clean water prior to storage. When using a pressure washer to clean painted surfaces, please be aware that water pressure alone may remove paint, or highlight existing discoloration caused by the sun’s uv. From the garden hose, rinse any nearby plants with clean water. Always test on an inconspicuous area first. Any overspray can be neutralized with large volumes of water. Do not mix this product with any other chemicals. Contains: a proprietary blend of biodegradable surfactants, detergents, and emulsifiers, in a water-based solution. No petroleum solvents, bleach or ammonia. Caution: Eye and skin irritant. In case of contact with eyes or skin, flush with water for 15 minutes. If irritation persists, seek medical attention. If swallowed, take large amounts of water. Do not induce vomiting. Get medical attention. Keep out of reach of children. Sweet odor. Container size: 1 gallon.