The world’s most versatile lubricant—only a handful of people know its formula.

As a lubricant, its fatal flaw is that it evaporates—not only failing to provide lasting protection, but actually attracting and concentrating dust and grime. Strictly speaking, it functions more like a solvent or cleaner than a true lubricant, since 'WD' stands for 'Water Displacement,' not 'Long-lasting Lubrication.' This is why, on internet forums, someone always jumps in to correct: 'WD-40 is NOT a lubricant!'—sparking protracted debates. Technically, it does contain lubricating ingredients, and its short-term effect after spraying does reduce friction. But if you’re seeking long-term lubrication, white lithium grease, silicone oil, or graphite lubricants are far more professional choices. So what is WD-40’s real competitive edge? The answer may lie in brand recognition, ubiquitous distribution, and its 'good-enough-for-most-things' jack-of-all-trades positioning. As one commentator put it, it’s not the best—but it’s readily available on supermarket shelves, affordably priced, and poses minimal irritation upon skin contact. When all you’ve got is a hammer and a can of WD-40, it’ll get you through most 'close-enough' problems. That’s precisely its secret to success. In a market saturated with highly specialized products, WD-40 occupies a unique niche: it’s the Swiss Army knife in your garage, the universal backup in your household toolbox—not the best in any single category, yet 'good enough' across a remarkably wide range of scenarios. And that 'secret formula,' locked away in a bank vault—so legendary that one must supposedly ride a horse through Times Square just to glimpse it? Its true value may long have transcended the chemistry itself, becoming part of the brand’s narrative: a carefully crafted legend lending an aura of mystique to every blue-and-yellow aerosol can. In the business world, sometimes convincing people you hold a secret is more valuable than possessing one. For seventy years, WD-40 has built an almost unreplicable brand moat—through a simple name, a mysterious formula story, and an all-purpose product positioning. As for that notebook documenting the fortieth successful formulation attempt? It may continue resting quietly in a San Diego bank vault. And every new CEO will treat being 'granted permission to view it' as a career highlight—even though, like you and me, they likely won’t understand a word of what’s written inside. References: 1. https://http://files.wd40.com/pdf/sds/mup/wd-40-multi-use-product-aerosol-low-voc-sds-us-ghs.pdfhttps://http://files.wd40.com/pdf/sds/mup/wd-40-multi-use-product-aerosol-low-voc-sds-us-ghs.pdf

On the Mechanic’s Treasure (I): Do You Know WD-40—from Outer Space to Your Home?

WD-40 stands for 'Water Displacement, 40th formula'—a waterproofing and rust-removing agent developed on the 40th attempt. Originally invented by Norm Larsen in 1953 for the U.S. Titan rocket program, the '40' reflects the fact that his first 39 attempts failed to meet specifications. Because WD-40 was initially developed for military use, it wasn’t sold commercially until five years later—in San Diego. Its parent company was originally named Rocket Chemical Company, but thanks to WD-40’s strong ties to aviation and its outstanding waterproofing performance, the company successfully rebranded itself as WD-40 Company. In 1964, NASA selected WD-40 as its designated waterproofing and rust-removal product during a procurement tender—propelling WD-40 into the spotlight once again and expanding its reach from the U.S. domestic market to 176 countries and regions. Today, WD-40 boasts over 60 years of history; in the United States, statistics show that four out of every five households use a WD-40 Company product—testament to its unshakable status in American life. The WD-40 Company went public on the NASDAQ in 1973 based solely on this single product, and—thanks to its stellar U.S. market performance—was named one of the ten most profitable companies in 1993. This speaks volumes about WD-40’s devoted following in America. Yet mere association with aerospace cannot fully explain why WD-40 alone rose above its competitors. Virtually all successful enterprises win customer loyalty not just through product quality, but also through savvy commercial strategy—and WD-40 is no exception. WD-40’s formula is protected in the U.S. as a trade secret, not a patent—just like KFC’s fried chicken seasoning or Coca-Cola’s ingredient blend. The reason lies in patent law: applying for a patent requires full disclosure of materials and proportions. Thus, from its inception, WD-40’s ingredient list has been stored in a bank vault in California, accessible only to a select few senior executives. In fact, curious analysts have long used spectroscopic analysis to deduce WD-40’s composition. Yet—as with Coca-Cola, whose secret formula is widely known yet whose $2-per-bottle product remains irreplaceable—knowing the recipe doesn’t diminish brand power. Americans’ affection for WD-40 far exceeds ordinary expectations: they’ve even formed fan clubs and compiled over 2,000 documented uses—some wildly imaginative, such as using WD-40 as engine oil (?), as a pigeon repellent (??), or as cockroach killer (???). Many of these stretch far beyond WD-40’s core function of waterproofing and rust removal.

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WD-40 Company disclosed insider trading activity through a Form 4 filing for Division President Patricia Q. Olsem on October 26, occurring while shares fell 2.07%.

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