What Is LIQUI MOLY Pro-Line Rapid Rust Solvent?

LIQUI MOLY Pro-Line Rapid Rust Solvent is a fast-acting penetrating rust solvent designed to release seized and corroded metal components. LIQUI MOLY Pro-Line Rapid Rust Solvent penetrates even narrow gaps and uses capillary action to reach rusted connections that are difficult to access.

It helps dissolve rust and dirt, loosen stubborn bolts and nuts, and displace moisture from treated surfaces. Its excellent penetration and lubricating properties help reduce friction between components during removal.

Key Features and Benefits

• Fast rust removal: Helps dissolve rust on corroded metal components.
• Excellent penetration: Reaches narrow gaps and difficult-to-access connections.
• Loosens seized parts: Helps release rusted bolts, nuts and screws.
• Moisture displacement: Penetrates and displaces moisture.
• Corrosion protection: Helps protect treated metal surfaces against corrosion.
• Lubricating properties: Reduces friction between components being released.
• Dirt removal: Helps dissolve dirt and contamination.
• Material compatibility: Does not attack plastics, rubber, paints or metals.
• Overhead application: Suitable for use on overhead surfaces and components.

Applications

LIQUI MOLY Pro-Line Rapid Rust Solvent is suitable for automotive, workshop, industrial, household and hobby applications.

Common uses include:

• Rusted bolts and nuts
• Seized screws and fasteners
• Corroded vehicle screw connections
• Bearing-area screw connections
• Stuck mechanical components
• Industrial bearings and connections
• Sliding guides and assembly components
• Metal surfaces requiring moisture displacement and corrosion protection

How to Use LIQUI MOLY Pro-Line Rapid Rust Solvent

1. Shake the aerosol can well before use.
2. Fold out the capillary tube for precise application to narrow gaps and rusted connections.
3. Spray the required quantity onto the affected component.
4. Allow the product to penetrate the rusted connection.
5. Carefully loosen the bolt, nut or screw.

For larger surfaces, fold the capillary tube in and spray from approximately 20–25 cm away. The aerosol can can also be used upside down.

Important Usage Information

• Allow sufficient time for penetration on heavily corroded connections.
• Use in a well-ventilated area.
• Keep away from heat, sparks and open flames.
• Do not spray onto an open flame or other ignition source.
• The aerosol is extremely flammable and pressurized.
• Follow the safety instructions printed on the product packaging.

8. Compatibility Summary

Suitable for rusted and corroded metal components in vehicles, workshops, industrial equipment, household appliances and hobby applications. Does not attack plastics, rubber, paints or metals.