The Original Penetrant since 1939, SILIKROIL, KROIL with Silicone aerosol is an industrial-strength penetrating oil formulated to quickly penetrate deep into small crevices. KROIL attacks rust and corrosion to help loosen frozen or seized metal fasteners such as nuts, bolts, screws, studs, hinges, tools, pulleys, chains or valves with the added benefits of silicone lubrication. Safe on all metals, it is ideal for stuck parts on cars, trucks, ATVs, fleet, farm and agriculture engines and equipment.

Corrosion Meets its Match

FAST-ACTING: penetrates small openings, threads and crevices
PRO GRADE: trusted by the professionals
SIMPLIFIES REPAIRS, MAGNIFIES MUSCLE: gives you all the leverage you need for those stubborn jobs
APPLICATIONS: Use on nuts, bolts, studs, screws, pulleys, shafts, valves, chains, tools, bearings, and any corroded threads or seized metal fasteners

Items You May Like

Reviews

Rating Snapshot

Select a row below to filter reviews.

498 reviews with 5 stars.

6 reviews with 4 stars.

0 reviews with 3 stars.

0 reviews with 2 stars.

2 reviews with 1 star.

Overall Rating

5.0

391 out of 396 (99%) reviewers recommend this product

Review this Product

Select to rate the item with 1 star. This action will open submission form.

Select to rate the item with 2 stars. This action will open submission form.

Select to rate the item with 3 stars. This action will open submission form.

Select to rate the item with 4 stars. This action will open submission form.

Select to rate the item with 5 stars. This action will open submission form.

Adding a review will require a valid email for verification

Summary of Reviews

AI-generated from customer reviews, which may include incentivized reviews.

The product is a highly effective penetrating oil that quickly breaks through rust and corrosion, allowing users to easily free up stuck, seized parts and fasteners across a wide range of applications...

Helpful?

Thank you for your feedback

Your insights help us improve!

Which aspects of this summary did you find most helpful? *

Clear and concise Accurate and relevant Easy to understand Helped with purchase decision Comprehensive overview Highlighted key features/benefits Other (please specify)

Additional comments?

0/250 maximum

Customer Images and Videos

satisfaction
purchase
corrosion
smell
functional
parking
price
removal

1 to 4 of 506 Reviews .

1 – 4 of 506 Reviews

Skooter

Menifee California

Review 1

5 out of 5 stars.

Best penetrating oil made

4 days ago

I've been using Kroil for 40 years and haven't found anything on the market that compares.

Yes, I recommend this product.

Originally posted on kroil

Bob 634

Kokomo, Indiana

Review 1

5 out of 5 stars.

Best on the market

6 days ago

Used this for many years in an industrial setting. I highly recommend this product over the others we did have at our disposal due to the fact it actually works! Personally, I found that heating up stubborn nuts/bolts and then using Kroil it seemed to draw it in a bit more, keep in mind this was in an industrial setting with very large equipment where use of a torch was common to speed things up. But if you have time to let it 'soak' on big or small stuff it works very well.

Yes, I recommend this product.

Originally posted on kroil

JMH64

Review 1

5 out of 5 stars.

Saves the job always

10 days ago

Kroil has been my go to for stuck bolts. It has saved the day more times than I can count during my 43 years as a journey man machine repairman.

Yes, I recommend this product.

Originally posted on kroil

Jotul guy

Forest Hill, Md

Review 1

5 out of 5 stars.

Works on toughest fasteners

14 days ago

I refurnish Norwegian wood stoves from the 1970’s. The nuts and bolts are incredibly tough to get loose. Kroil is the only thing I have found that works. Often takes several applications over the course of 2-3 days but it will eventually work!

Yes, I recommend this product.

Originally posted on kroil

Kroil 10 oz. Penetrant with Silicone Aerosol

Kroil 10 oz. Penetrant with Silicone Aerosol

Neighbor’s Club Members earn points with purchases.

Kroil 10 oz. Penetrant with Silicone Aerosol

Neighbor’s Club Members earn points with purchases.

Similar Items

BullSnot! GreaseABull Spray Grease

Traveller 14 oz. Multi-Purpose Lithium Grease

Permatex 3 oz. Dielectric Tune-up Grease

B'laster 11 oz. White Lithium Grease

Permatex 1.5 fl. oz. White Lithium Grease

Valvoline 14.1 oz. Crimson Grease

Devcon 8 oz. VersaChem Synthetic Caliper Grease

Devcon 3 oz. VersaChem Dielectric Connector Grease

Shell Rotella 14.1 oz. ET Grease

Shell Rotella 14.1 oz. HD Grease

Super S 1 qt. #00 Cotton Picker Spindle Grease

Traveller 1 lb. #2 Premium Heavy-Duty Lithium Complex NLGI Grease

Items You May Like

Kroil 10 oz. Penetrant Aerosol

B'laster 11 oz. PB Penetrating Catalyst Nut and Bolt Buster

B'laster 1 gal. Original PB Penetrant

Traveller 12 oz. Heavy-Duty Penetrating Oil

B'laster PB Graphite Dry Lube

Hot Shot's Secret DEFender Crystal Elimnator & DEF Booster

BullSnot! FreeABull Metal Penetrating Lubricant

Cre-Oil 11 oz. Penetrating Oil

Super Lube Multi-Purpose Synthetic Lubricant with Syncolon

BullSnot! GreaseABull Spray Grease

WD-40 11 oz. Industrial Strength Fast-Acting Specialist Penetrant with Smart Straw

Pennzoil 1 gal. Marine XLF Extended Life Formula Engine Oil

Customers Also Bought

BullSnot! GreaseABull Spray Grease

Permatex 3 oz. Dielectric Tune-up Grease

Permatex 1.5 fl. oz. White Lithium Grease

Devcon 8 oz. VersaChem Synthetic Caliper Grease

Shell Rotella 14.1 oz. HD Grease

Miles Lubricants MILES SUPER RED GREASE (35 lb.)

Traveller 3 oz. Cartridge Multi-Purpose No. 1.5 Lithium-Based Lubricating Grease, 3-Pack

Mystik 14 oz. #2 JT-6 High Temp Grease Tube

Traveller 3 oz. Marine and Off-Road Calcium Sulfonate NLGI #2 Grease Cartridges, 3 pk.

Shell Rotella 14.1 oz. ET Grease

Traveller 1 lb. #2 Premium Heavy-Duty Lithium Complex NLGI Grease

Shell Rotella 14.1 oz. SD Grease

Reviews

Rating Snapshot

Overall Rating

Review this Product

Thank you for your feedback

Customer Images and Videos

Best penetrating oil made

Best on the market

Saves the job always

Works on toughest fasteners