Is WD-40 still a secret?

Is the WD-40 Formula Still a Secret?

When you grab a blue-and-yellow can of WD-40 from the garage, you are holding onto a recipe that has stayed locked away for decades. Despite what internet rumors or DIY forums might claim, the exact formulation behind the iconic multi-use product remains tightly under wraps.

For more than 60 years, the company has successfully protected its proprietary blend. While many curious minds and DIY chemists have tried to reverse-engineer or guess the ingredients, any reports claiming to reveal the real secret sauce are completely inaccurate.

So, why keep it hidden for so long? Protecting the recipe has helped the brand maintain its unique quality and consistency, keeping millions of squeaky hinges, rusted bolts, and stuck mechanisms moving smoothly across the world without ever needing to change a winning formula.