The history of WD-40

Here’s a little home improvement back-story on how WD-40 came to be.

It took them 40 attempts to get the water displacing formula worked out. But they must have been really good, because the original secret formula for WD-40—which stands for Water Displacement perfected on the 40th try—is still in use today.

Posted by etrigan at January 8, 2004 10:17 AM