Silicone Lubricant Spray WD‑40 WD‑40, 400 ml

WD‑40 Silicone Lubricant Spray 400 ml provides long-lasting, clear silicone lubrication for metal, plastic and rubber surfaces. The aerosol spray delivers a thin, non-staining silicone film that reduces friction, protects against moisture and helps prevent sticking and squeaks on moving parts. The formula leaves a flexible residue suitable for hinges, locks, sliding mechanisms, seals and outdoor equipment.

Advantages

The spray applies an even, transparent silicone layer that does not attract dust and does not stain most surfaces. It reduces friction and wear on contact points while offering moisture resistance to help prevent corrosion and sticking of parts exposed to damp conditions. The residue remains flexible, maintaining lubrication on rubber and plastic components without causing swelling or hardening.

Suitable for

• Hinges and door mechanisms
• Locks and latches
• Sliding tracks and drawer runners
• Rubber seals and weatherstrips
• Outdoor equipment and tools exposed to moisture

When it may not be suitable

This silicone spray is intended for lubrication and moisture protection and is not formulated as a heavy-duty penetrating oil for seized or heavily corroded fasteners. It is not a high-load gear oil and should not be used where a grease or specialized gear lubricant is specified. Avoid using on surfaces where paint adhesion is critical without testing, as any spray may affect painted finishes.

Key specifications

• Form: silicone lubricant in aerosol spray
• Volume: 400 ml
• Film: clear, non-staining silicone residue
• Compatibility: suitable for metal, plastic and rubber surfaces
• Properties: moisture resistance, flexible residue, reduces friction and squeaks

How to use

Shake the can well before use and spray a light, even coat onto the target area from a short distance. Apply to clean, dry surfaces for best results; remove dust, dirt or old lubricants prior to application. For seals and rubber parts, apply sparingly and allow the silicone film to form; for hinges and sliding mechanisms, operate the part after spraying to distribute the lubricant. Reapply as needed based on usage and environmental exposure.

What to consider before purchase

• Ensure the product volume (400 ml) meets your usage needs.
• Confirm compatibility with the specific plastics or rubbers in your equipment by testing on a small area if unsure.
• Consider whether a silicone lubricant is appropriate versus penetrating oils or greases for high-load or heavily corroded parts.

Usage recommendations

Store the aerosol upright in a cool, well-ventilated place away from heat sources. Use in a ventilated area and avoid spraying near open flames. Test on an inconspicuous area when using on painted or delicate surfaces, and reapply periodically where movement or moisture exposure is frequent.