32oz Stainless Steel CleanerThis is a phosphoric acid-based stainless steel cleaner. Features:It removes rust staining and surface corrosion from polished marine-grade stainless steel Shelf Life at 23 degrees Celsius is 24 months Specifications:pH Value: 1.0Size: 32oz bottleContents: Contains non-ionic surfactants < 5% Recommended Applications: A brush is recommended, but cotton, a rag, or a sponge may be usedRecommended UseUsed for cleaning rust staining and surface corrosion from polished marine-grade stainless steel.Surface PreparationApply the product to the area to be treated. Allow it to work for up to 30 minutes. Rinse well with fresh water and a sponge.Pre-treatmentClean with detergent.StorageThis product must be stored in accordance with national regulations. Keep the containers in a dry, cool, and well-ventilated space away from sources of heat and ignition. Containers must be kept tightly closed. Handle with care.