Frequently Asked Questions About WD-40
What does WD-40 mean?
WD-40 means Water Displacement, 40th formula. The name refers to the 40th formulation developed during the company's efforts to create the product.
When was WD-40 invented?
WD-40 was developed in 1953 by Rocket Chemical Company in San Diego, California.
What was WD-40 originally made for?
It was originally developed as a water-displacing and corrosion-prevention product for the aerospace industry.
Was WD-40 created for the Atlas missile?
Yes. WD-40's early industrial history is closely associated with Convair and the Atlas missile program, where it was used to help protect the missile's exterior from corrosion.
Why is it called WD-40 instead of something else?
The name reflects its purpose—Water Displacement—and the fact that the successful formula was the company's 40th attempt.
Is WD-40 a lubricant?
The classic formula can provide some lubricating effects, but its original purpose is water displacement and corrosion protection. Specialized lubricants are often better for applications requiring long-lasting lubrication.
Why is WD-40 blue and yellow?
The blue-and-yellow packaging became the product's recognizable visual identity over its consumer history. Those colors are now strongly associated with the WD-40 brand.
Is WD-40 good for removing rust?
WD-40 can help with certain rust-related maintenance tasks and can provide corrosion protection, but heavily rusted metal may require a dedicated rust remover or mechanical rust-removal method.
General Information About WD-40
Product: WD-40 Multi-Use Product
Company origins: Rocket Chemical Company
Year developed: 1953
Original location: San Diego, California
Original purpose: Water displacement and corrosion protection
Early industrial connection: Aerospace industry
Notable early application: Atlas missile program
Meaning of WD: Water Displacement
Meaning of 40: The 40th formulation
The Bigger Story Behind That Little Can
What I love most about the WD-40 story isn't even the missile connection.
It's the transformation.
A small team develops a product for a highly specialized industrial problem.
The formula works.
People discover new uses.
The product leaves the aerospace world.
It enters garages.
It enters workshops.
It enters homes.
And eventually, it becomes something people recognize almost instantly.
That's how an ordinary object becomes part of everyday culture.
And the next time you see that familiar blue-and-yellow can, you might look at it a little differently.
Because you're not just looking at a household maintenance product.
You're looking at a tiny piece of Cold War-era technological history.
More Fascinating Histories Hiding in Everyday Products
If you enjoyed the strange journey of WD-40, there are plenty of other everyday products with surprisingly dramatic backstories.
You might also enjoy learning:
- The surprising history of duct tape and how it moved from military use into everyday life.
- Why bubble wrap wasn't originally invented as packaging.
- The unexpected military origins of everyday household products.
- How the humble microwave oven changed the modern kitchen.
- The fascinating story behind the invention of Velcro.
- Why the original purpose of Post-it Notes was completely different from what we use them for today.
Sometimes the most interesting history isn't sitting in a museum.
Sometimes it's sitting on a shelf in your garage.
Tell Me What You Think!
Did you know WD-40 had connections to the Atlas missile program?
Or did you, like me, grow up thinking it was simply “the stuff Dad sprayed on everything that squeaked”?
I'd love to hear your memories!
Leave a comment and tell me the strangest or most useful thing you've ever used WD-40 for.
And if you have an old photo of that legendary blue-and-yellow can sitting in your family garage, share it on Pinterest and tag your photo. I would absolutely love to see how many of us have been keeping a can around for years!!
Conclusion: From Missile Protection to the Household Toolbox
WD-40's history is proof that the most ordinary objects can have extraordinary beginnings.
It started in 1953 as an attempt to solve a very specific aerospace problem: protecting metal from moisture and corrosion.
After 40 formulations, the successful formula was born.
It was used in connection with the Atlas missile program.
And eventually, it escaped the aerospace world and became a familiar fixture in garages and homes around the world.
So the next time you reach for that blue-and-yellow can, remember what you're holding.
Not a miracle in the literal sense.
Not magic in a can.
But a remarkably successful example of Cold War-era problem solving, persistence, engineering, and accidental household innovation.
And honestly?
That's a pretty incredible history for something that lives next to a hammer and a box of old screws.
Nutritional Information
Not applicable. WD-40 is a household maintenance product and is not intended for consumption.