Purpose and Specifications

LIQUI MOLY LM 40 is a premium 5-in-1 multi-purpose spray lubricant designed to lubricate, clean, loosen, protect, and preserve metal components and moving parts. This versatile aerosol spray is engineered for household, workshop, automotive, and industrial applications where penetration, rust protection, and smooth operation are essential.

Key Functions:

• Lubricates – Reduces friction in hinges, locks, cables, and moving parts for smooth, quiet operation
• Cleans – Removes dirt, oil, and stubborn grease residues from hard-to-reach areas
• Loosens – Frees rusted, seized, or burnt-on screws and fasteners quickly
• Protects – Guards metal surfaces and chrome parts against rust and corrosion
• Preserves – Maintains electrical conductivity and prevents components from seizing

Performance Highlights:

• Excellent penetration properties reach deep into threads and hidden joints
• Water-displacing formula protects against moisture and corrosion
• Wear protection rated as very good in independent testing
• Safe on plastics, paints, metals, and wood – does not damage surfaces
• Silicone-free formulation suitable for electrical contacts
• 360-degree spray head for convenient application in any direction
• Active ingredient content of 97% ensures maximum effectiveness

When to Use / Replace?

Typical Applications: Door hinges, window mechanisms, bicycle chains, garden equipment, car door locks, antenna joints, electrical switches, and industrial machinery. Use whenever you need to free stuck parts, reduce friction, or protect metal from rust.

Replacement and Storage: A 400 ml can typically lasts 6–12 months with regular household and workshop use, depending on frequency of application. Store in a cool, dry place away from heat sources. The aerosol is pressurized and should not be exposed to temperatures above 50°C. Shelf life is approximately 3–5 years when stored properly in original packaging.

Operating Temperature Range: Effective in standard environmental conditions (approximately -10°C to +40°C for typical use). The protective film remains stable across normal seasonal temperature variations.

Frequently Asked Questions

Q: Is LM 40 safe to use on car paint and plastic trim?
A: Yes. LM 40 is neutral and does not attack plastics, paints, metals, or wood. However, a spot test on unfamiliar plastic surfaces is recommended before full application.

Q: Can I use LM 40 on electrical contacts and switches?
A: Yes. LM 40 improves electrical conductivity by forming a moisture-repellent protective layer and infiltrating moisture from contacts. It is silicone-free, making it safe for sensitive electrical components.

Q: How long does the protective effect last after spraying?
A: The protective film adheres well to metal surfaces and provides ongoing corrosion protection during regular use. For maximum protection in high-moisture environments, reapply every 3–6 months or when the protective layer visibly diminishes.