WD-40 Multi-Use Spray — Classic 14.4 oz 2-Pack with Smart Straw, Moisture Displacement & Rust Protection

WD-40 Classic is a versatile multi-use spray that displaces moisture, loosens stuck parts, protects metal from corrosion, removes sticky residues, and lubricates moving components.

Keep a 2-pack of the 14.4 oz WD-40 Classic with Smart Straw on hand for routine household maintenance, workshop tasks, and quick fixes on the go. This formula is designed to dry out wet electrical connections, cut through grime, free frozen hinges and bolts, and leave a protective film that helps slow rust formation. The included Smart Straw snaps into place for narrow precision or flips down for wider spraying—handy for both delicate electronics and larger surface jobs.

How does WD-40 Classic help with moisture and electrical issues?

WD-40 Classic drives out trapped moisture and evaporates quickly, helping reduce the risk of short circuits from damp connections. It’s commonly used to revive water-exposed tools, motors, and switches by displacing water and leaving a thin protective layer.

• Spray into wet switches, battery compartments, and connectors to displace water.
• Dries rapidly to restore electrical conductivity without leaving heavy residue.
• Helps prevent corrosion on exposed terminals and contact points.

Will this product loosen rusted or stuck metal parts?

Yes — the penetrating action helps break rust-to-metal bonds and frees stuck bolts, hinges, and fasteners so they can turn or open with less force. Use it on seized parts and allow short dwell time to penetrate and loosen the bond.

• Apply to rusted bolts, nuts, hinges, and chains to reduce friction and seizure.
• Use the Smart Straw for precise application in tight crevices.
• Tap or work the part after application to aid penetration and release.

Can WD-40 remove grease, sticky residue, and other gunk?

WD-40 Classic dissolves many common adhesives, tar, sap, sticker residue, and greasy soils so they can be wiped away more easily. It’s effective on a variety of surfaces, but test an inconspicuous area first on delicate finishes or plastics.

• Loosens gum, tar, and adhesive residues for simple removal with a cloth.
• Breaks down grease and grime on tools, machinery, and outdoor gear.
• Works well as a pre-clean step before deeper cleaning or painting when surfaces are compatible.

How does this spray perform as a lubricant and corrosion inhibitor?

WD-40 Classic lubricates hinges, wheels, pulleys, rollers, chains, and gears to reduce squeaks and friction while leaving a protective film that helps slow rust. It’s not a heavy-duty gear oil but offers light lubrication and protection for everyday mechanisms.

• Apply thinly to hinges, latches, and sliding mechanisms to stop squeaks.
• Use on chains and cables for temporary lubrication and easier movement.
• Leaves an invisible barrier that helps guard metal surfaces from moisture-driven corrosion.

Who is this for? Homeowners, hobbyists, mechanics, electricians, and anyone who needs a compact, multipurpose maintenance spray will find this 2-pack of 14.4 oz WD-40 Classic with Smart Straw useful. It’s suited for quick fixes, preventive maintenance, and cleanup jobs in the garage, workshop, boat, RV, or around the house. Keep a can in your toolbox and another in a utility closet or vehicle for fast access when things stick, get wet, or start to squeak.