WD-40 General Purpose Lubricant

• Lubricates and stops squeaks: Smooths movement in door hinges, locks, tools, and chains (though it is a light, temporary lubricant rather than a heavy-duty grease).
• Penetrates rust: Loosens rusted bolts, frozen padlocks, and stuck metal-to-metal bonds.
• Cleans and degreases: Breaks down grease, grime, adhesive residue, tar, and crayon marks on hard surfaces.