VERZONE Z-901 is an excellent water-soluble, organic rust preventative for steel and cast iron, free from nitrites, phosphates, and borates, ensuring safety and no unpleasant odor. It offers high turbidity resistance for cleaning and submerged applications. This low-foaming agent includes a volatile corrosion inhibitor, protecting both liquid and air interfaces. Applied at 1-10% concentration, it forms a durable anti-rust coating after immersion and air drying. Specifications: pale yellow liquid (colorless when diluted), specific gravity 1.05±0.02 (25°C), and weakly alkaline pH 9.5±0.7. Performance tests confirm its superior rust-preventive capabilities in liquid and humid environments.