Overview of Orb Tech Acid Cleaner HALT (Halt) Rust Remover/Rust Prevention Cleaner 500ml Features ● Removes oil stains and concrete fragments; wipe Halt directly onto the surface and then wipe off with a cloth or sponge. ● For stubborn stains, apply evenly with a brush or soak for several minutes, then scrub with a spatula or brush for effectiveness. ● Although strongly acidic, the main component is phosphoric acid, so it is non-reactive to direct skin contact. ● Removes various water-related stains such as soap scum, blackening, limescale, verdigris, yellowing, and water stains, as well as urine scale and moss. ● When Halt is applied to rusty iron, a phosphate film is formed, which becomes a heat-resistant and anti-rust coating. Painting is possible anytime after two days of complete drying. Applicable Materials ● Can be used on most metals such as steel, copper, brass, alloys, zinc pipes, chrome plating, nickel plating, stainless steel, and aluminum (cannot remove stains/rust on silver only). ● Can be used on many stone materials such as granite, porcelain tile, concrete, blocks, ceramic tile, interlocking, bathtub tile, toilets, and bricks. ● For stains on washbasins and faucets, limescale on kitchen sinks, water stains on washlets, and blackening on FRP bathtub floors, soak for 10 minutes and scrub with a scrub brush. Rust on pins will disappear after being left for more than 2 hours. Precautions for Use ※ Always test before cleaning to confirm the safety of the material against corrosion, discoloration, and gloss. ※ Do not soak stainless steel and aluminum for more than 3 minutes. Acid burn will occur. ※ Do not use on natural marble, pearl stone, travertine, and limestone. The gloss will be lost. ※ When using Halt as a rust inhibitor, a phosphate film will not form if the outside temperature is below 5 degrees Celsius, as it will not dry. ※ Do not use on baked-on paint. ※ Aluminum, copper, and plating with little dirt will discolor if left for more than 10 minutes. ※ Always test before cleaning to confirm the safety of the material against corrosion, discoloration, and gloss. ※ The film on heat-reflecting glass will be damaged.