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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Reviews

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1070 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

914 out of 919 (99%) reviewers recommend this product

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1 to 4 of 1089 Reviews .

1 – 4 of 1089 Reviews

JT ArkBar

Hot Springs

Review 1

5 out of 5 stars.

Wow is all I can say.

2 days ago

A mechanic friend told me about it when I was having trouble with An exhaust on a Golf cart, he told me, don't look at the price just buy it. And I am so amazed, I've used it several times around the house, including on a door to a shed outside that I had soaked the hinges in diesel and this product loosened it within 5 minutes.

Yes, I recommend this product.

Originally posted on kroil

AlJaz

Amherst, Wisconsin

Review 1

5 out of 5 stars.

Excellent product to get something free!

6 days ago

An old boss of mine found your product 18 years ago and I have been a buyer ever since. The price has gone way up since then and I wish it would come back to reality! Other complaint is it is impossible to empty a can, always run out of propellant.

Yes, I recommend this product.

Originally posted on kroil

smac

Saugus MA

Review 1

5 out of 5 stars.

The Best

14 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 !!

27 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

Kroil 10 oz. Penetrant Aerosol

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Reviews

Rating Snapshot

Overall Rating

Review this Product

Wow is all I can say.

Excellent product to get something free!

The Best

Amazing product !!