Restore and maintain the surface layer on stainless steel that protects it from corrosion. Also known as passivating fluids, these protectants are made from citric acid, which removes iron from the surface of stainless steel that has been damaged from machining, heat, or chemicals. This exposes the chromium in stainless steel and reacts with air to form a protective layer. These protectants also remove dirt, discoloration, and minor corrosion. Unlike nitric acid and other passivating fluids, citric acid does not create dangerous fumes and is safe for use throughout your plant. These protectants come ready-to-use, so you don’t have to mix them, but you can dilute them with water for 400-series stainless steel and other sensitive parts.

These protectants meet SAE and ASTM international guidelines for passivating stainless steel. They also meet ASTM international guidelines for descaling and cleaning titanium and titanium alloys.

Liquid protectants are thinner than gel protectants, making them ideal for submerging parts. When spot cleaning, however, they will drip down vertical surfaces. Gel protectants are thicker than liquid protectants, so they cling to surfaces. Use them on vertical surfaces, weld joints, and other parts that can’t be submerged.

Protectants for removing dirt and rust contain an additive that eliminates existing rust. Protectants for removing dirt only are less acidic and won’t discolor 400-series stainless steel. Do not use them on parts that have rust.