Kroil Penetrant with Silicone
Free it up, lube it up, finish it up. No job is too tough for Kroil Penetrant with Silicone (formerly SiliKroil).
Kroil Penetrant with Silicone (formerly SiliKroil) has been engineered to loosen frozen metal parts and provide extra lubrication for long-lasting protection. The addition of silicone to the legendary Kroil formula results in superior penetration, lubrication and rust prevention. This high solvency oil first penetrates into spaces as tight as one-millionth of an inch to break the bond of rust, and then provides lubrication at the first molecular level, subsequently freeing virtually any metal part. Kroil Penetrant with Silicone is designed for use on frozen bearings, slides, gate valves, hinges, chains, and more. Excellent for use in coastal areas or anyplace where exposure to salt and weather is a factor.
Available In
Aerosol: 10oz, 16.5oz
Liquid: 1gal, 5gal, 55gal
Lubricates Longer
Dimethyl silicone provides extra long-lasting lubrication and rust protection
Attacks Corrosion
Frees bolts, fasteners and other mechanical components
Penetrates Deeper
Penetrates deeply into frozen metal parts and supplies added lubrication
Removes Rust and Carbon Deposits
Will not attack or damage metal
Works Everywhere
Use on any corroded threads or tight parts
Simplifies Repairs
Makes the toughest maintenance jobs easier, faster and safer to execute
- Agriculture
- Automotive
- Aviation
- Construction
- Electrical
- Facilities Maintenance
- Factories
- Firearms
- First Responders
- HVAC
- Industrial
- Infrastructure
- Lumber
- Manufacturing
- Maritime
- Mechanical
- Metal Fabrication
- Military
- Mining
- Oil & Gas
- Plumbing
- Utilities
- Transportation
- Utilities
Maintenance Tips

Get Some Air
A large airplane factory reported having trouble with air-driven rivet guns, which slowed down production. The maintenance team applied Kroil Penetrant with Silicone (formerly SiliKroil) to the air-driven equipment, and voilà, the production line was flying again.

Hitches, Please
Trailer hitches don’t usually get much love. They’re often left out in the elements for long periods of time. When hitches lock up or get rusty, spray them with Kroil Penetrant with Silicone to loosen and lubricate for lasting use.

Chain Gang
Apply a top-coat of Kroil Penetrant with Silicone for additional cleaning and long-lasting lubrication, after loosening rusted chain mechanisms with Kroil Original Penetrant.
Reviews
“It does the job so well; it pays for itself.”
Plant Manager, Major Manufacturer
“Like magic, the lubrication penetrates the toughest bolts.”
Amazon Reviewer
“If I see a can of Kroil in a shop, I know they know what they’re doing.”
Master Automotive Equipment Technician, Telecom Company
FAQs
Looks like Kroil products have new packaging. Have the formulas changed?
Thanks for noticing our great new look! While you will soon be seeing new Kroil packaging on the market, the same great products are still inside the cans. The formula hasn’t changed.
(New packaging coming Summer 2021.)
(New packaging coming Summer 2021.)
I used to be able to order Kroil penetrants and other Kano products from the KanoLabs website. Can I still order them here?
Yes, you can. Click here to view available products and place your order.
What is the difference between Kroil Original Penetrant and Kroil Penetrant with Silicone (formerly SiliKroil)?
Both products have similar penetrating properties, and can be used in multiple applications. The biggest difference between the two is the lasting lubricating effect of silicone in Kroil Penetrant with Silicone (formerly known as SiliKroil). In addition to lubrication, silicone helps to displace moisture, which adds an extra element of protection.
Do Kroil Original Penetrant and AeroKroil have the same potency?
Yup, the exact same product is in all Kroil Original Penetrant liquid and aerosol cans.
Can Kroil Original Penetrant and Kroil Penetrant with Silicone be used on all metals?
Yes, Kroil products are safe and effective on all metals.
Will Kroil penetrants damage the bluing on a hand gun or long gun?
If there is already current damage to the blued finish, Kroil penetrants can possibly creep under and lift the finish from the gun/rifle. In the event of overspray, simply wipe excess Kroil off the affected area(s) with a clean dry cloth.
Where can I get Kroil products in my area?
Please visit our Where to Buy page on this website for purchasing instructions.
I’m not sure which Kroil product to use for my application, can you help me?
We sure can, please call us at 800-311-3374.
WARNING Prop 65 Compliance: This product can expose you to chemicals including beta-myrcene, which is known to the State of California to cause cancer. For more information, go to www.P65Warnings.ca.gov