• Converts rust into a stable, paintable surface.
• Phosphoric acid–based metal treatment.
• Chemically neutralizes oxidation on ferrous metals.
• Helps improve paint adhesion on rusted steel and iron.
• Reduces the need for extensive sanding or grinding.
• Can be applied by brush, roller, sponge, or low-pressure sprayer.
• Ideal for surface preparation before priming and painting.
• Works on lightly to moderately rusted metal surfaces.
• Fast-acting formula that reacts with rust to form a protective phosphate coating.
• Interior and exterior use when properly coated after treatment.

Recommended Applications

• Metal gates and fences
• Structural steel
• Automotive restoration
• Trailers and utility equipment
• Farm machinery
• Industrial equipment
• Marine metal components (above the waterline)
• Handrails and metal roofs

Directions for Use

1. Remove loose rust, paint, grease, oil, and dirt.
2. Apply evenly to the rusted surface.
3. Allow the product to react until the surface turns dark gray or black.
4. Let the treated surface dry completely.
5. Prime (if required) and paint according to the coating manufacturer's recommendations.

Safety Information

• Corrosive—contains phosphoric acid.
• Wear protective gloves and eye protection during use.
• Avoid contact with skin and eyes.
• Use only in a well-ventilated area.
• Keep out of reach of children.
• Do not freeze.
• Store container tightly closed in a cool, dry location.

Product Type

• Brand: SKYCO
• Product Name: OSPHO Rust Treatment
• Category: Rust Converter / Metal Surface Preparation
• Net Contents: 1 Gallon (3.78 L)