16oz Boat Cleaner - Removes Waterline & Rust StainsThis is an ethanedioic acid-based cleaner.Features:This cleaner removes yellow/brown waterline stains/scum and rust stainsShelf Life at 23 degrees Celsius is 24 monthsSpecifications:pH Value: 1.0Size: 16oz bottleThe Product Can Be Applied By: A brush is recommended, but cotton, a rag, or a sponge may be usedProduct Mixing Ratio (By Volume): Single packRecommended UseTo be used for cleaning the waterline staining and rust staining on GRP and painted surfaces.Surface PreparationApply the product to the area to be treated. Allow it to work for up to 10 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.