WD – 40 – Water Displacement – 40th Attempt
The long-term active ingredient is a non-volatile, viscous oil which remains on the surface, providing lubrication and protection from moisture. This is diluted with a volatile hydrocarbon to give a low viscosity fluid which can be sprayed and thus penetrate crevices. The volatile hydrocarbon then evaporates, leaving the oil behind. A propellant (originally a low-molecular weight hydrocarbon, now carbon dioxide) provides gas pressure in the can to force the liquid through the spray nozzle, then itself diffuses away.
These properties make the product useful in both home and commercial fields; lubricating and loosening joints and hinges, removing dirt and residue, and extricating stuck screws and bolts are common usages. The product also may be useful in displacing moisture, as this is its original purpose and design intent.
Multi-Purpose Problem Solver for Over 50 Years: WD-40
WD-40, everyone’s favorite multi-purpose problem solver for over 50 years, cleans, lubricates and protects against corrosion. It also removes grease, gum, dirt, adhesives, & scuff marks.
Did you know..?
- WD-40® can clean your bike & tools, remove grease, and lubricate locks, hinges, & all moving parts
- WD-40 removes paint, gum, rubber cement, rubber adhesive, stickers, rust stains and more
- WD-40 loosens and penetrates rusted or stuck bolts and plumbing joints
How long does WD-40 last after application?
While this may vary depending on the application, WD-40 remains effective even after it appears to dry. The corrosion and rust protection ingredients remain adhered to the surface. External conditions may, of course, require additional applications of WD-40 for maximum protection.
What does WD-40 do?
WD-40 fulfills five basic functions:
- CLEANS: WD-40 gets under dirt, grime and grease to clean. It also dissolves adhesives, allowing easy removal of labels, tape and excess bonding material.
- DISPLACES MOISTURE: Because WD-40 displaces moisture, it quickly dries out electrical systems to eliminate moisture-induced short circuits.
- PENETRATES: WD-40 loosens rust-to-metal bonds and frees stuck, frozen or rusted metal parts.
- LUBRICATES: WD-40’s lubricating ingredients are widely dispersed and tenaciously held to all moving parts.
- PROTECTS: WD-40 protects metal surfaces with corrosion-resistant ingredients to shield against moisture and other corrosive elements.