WD-40: The Secretly Incredible Spray

WD-40, known for its usefulness and sprayfulness, has a fascinating history. Originally invented to prevent rust on Cold War era ICBMs, WD-40 quickly became a popular home improvement tool. With its unique marketing and catchy name, the product gained widespread popularity, and by the early 1980s, around 80% of US households owned a can of WD-40. The exact recipe of WD-40 is a closely guarded secret, making it a trade secret rather than a patented product. While WD-40 should not be ingested or inhaled, it has found some interesting uses in the advertising and food styling industries. Its success and enduring popularity can be attributed to its versatility and the cult-like following it has garnered over the years.