WD-40 is a multi-purpose product used widely to protect metals from rust and corrosion, to penetrate seized parts, to displace moisture and to lubricate all kinds of mechanisms. Its name comes from the phrase "Water Displacement, 40th formula", indicating that it was the result of the 40th attempt at creating it. Thanks to its special formulation, WD-40® penetrates deep and frees any seized mechanism. It can also be used in complete safety on all metals and plastics with no compatibility problems, it is a poor conductor of electricity, and the propellant it contains is non-flammable for complete safety in use. Designed in NASA's laboratories from an ideal combination of high-quality ingredients, WD-40® is a genuinely professional product — a high-specification "tool" used across many different fields: industry, aerospace, engineering, agriculture and more. In recent years WD-40 has found its way into every home. It is the product with more than 2,000 uses and unlimited applications.