The Original Penetrant since 1939, AEROKROIL, KROIL 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. 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

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1068 reviews with 5 stars.

12 reviews with 4 stars.

1 review with 3 stars.

0 reviews with 2 stars.

6 reviews with 1 star.

Overall Rating

5.0

912 out of 917 (99%) reviewers recommend this product

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1 to 4 of 1087 Reviews .

1 – 4 of 1087 Reviews

smac

Saugus MA

Review 1

5 out of 5 stars.

The Best

2 days ago

Kroil has to be the best penetrant i have used and just purchased the food grade version to see how that works!

Yes, I recommend this product.

Originally posted on kroil

Luke

Jackson MI

Review 1

5 out of 5 stars.

Amazing product !!

16 days ago

I use Kroil on anything that has rust or can rust, nothing works like it does !!!

Yes, I recommend this product.

Originally posted on kroil

Oldiefarty

Milwaukee, WI

Review 1

4 out of 5 stars.

Good product, bad packaging

19 days ago

So many times I use aerosol cans and end up with product in the can but the propellant run out. (The SSST) Is gone.

Yes, I recommend this product.

Originally posted on kroil

Andy12

Fall River MA

Review 1

5 out of 5 stars.

Works great

a month ago

Awesome formulation and great solution for 2ea frozen caliper pins when time is of the essence and a complete removal and replacement of pins onsite is not an option.

Originally posted on kroil

Kroil 10 oz. Penetrant Aerosol

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Kroil 10 oz. Penetrant Aerosol

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Reviews

Rating Snapshot

Overall Rating

Review this Product

The Best

Amazing product !!

Good product, bad packaging

Works great