Kroil Original - The most trusted penetrating oil since 1939! Choose from Kroil Original Penetrant, Kroil Original Penetrant Aerosol FormAT (AeroKroil), or Silikroil (Kroil Penetrant with Silicone).

When it comes to freeing corroded items in tough spaces, nothing rivals powerful, industry-proven Kroil penetrating oil.Used and trusted by pros and experienced DIYers alike since 1939, Kroil quickly loosens rusted nuts and bolts, frees frozen shafts, pulleys, and more.

Find out where you can buy the best penetrating oil on the market! Find a distributor in your state or order online from Amazon.

Learn more about the history of our rust penetrating oil & industrial products. Established in 1939, Kano Labs set out to produce the best penetrant, Kroil.

Silikroil, Kroil Penetrant with Silicone has been engineered to loosen frozen metal parts and provide extra lubrication for long-lasting protection.

Where to buy the best rust penetrants on the market and other industrial products by Kroil. Formulated to help you get tough jobs done.

Super Lube® is a leading brand of a 40-year-old manufacturer of high-performance synthetic food-grade greases and lubricants.

Check out maintenance tips & insights from the experts on the best penetrating oil for rusted nuts and spray to loosen bolts in various applications.

View FAQs about our industrial products & spray to loosen frozen nuts & bolts. Visit our website for purchasing instructions to get the best penetrating oil.

Find important product and safety information for our rust penetrating oil and other industrial products. Call us with technical questions!