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5.0 out of 5 stars. 1109 reviews
A woman outside with a dog
A woman outside with a dog

Kroil 10 oz. Penetrant Aerosol

Kroil 10 oz. Penetrant Aerosol

Item # 2324956

Stocked & Ready
Kroil Kroil 10 oz. Penetrant Aerosol
Kroil Kroil 10 oz. Penetrant Aerosol

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Kroil 10 oz. Penetrant Aerosol

Item # 2324956

Stocked & Ready
Kroil Kroil 10 oz. Penetrant Aerosol
Kroil Kroil 10 oz. Penetrant Aerosol

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$2469

$2599

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$26.99

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Grassland (franklin) TN

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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

Q&As

1 - 2 of 2 Questions

Q: Will this also provide lubrication to moving parts such as a hood latch, or should you apply something else after using Kroil?

9 months ago
1 Answer
  • A: Hi Neighbor! Yes, this does provide lubrication for moving parts when applied.
    9 months ago
    Helpful?

Q: Is it safe for rubber?

a year ago
1 Answer
  • A: Hi John this item is used to help loosen frozen or seized METAL fasteners such as nuts, bolts, screws, studs, hinges, tools, pulleys, chains or valves.
    a year ago
    Helpful?

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Reviews

Rating Snapshot

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1088 reviews with 5 stars.
12 reviews with 4 stars.
1 review with 3 stars.
0 reviews with 2 stars.
8 reviews with 1 star.

Overall Rating

5.0
928 out of 935 (99%) reviewers recommend this product

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Summary of Reviews

AI-generated from customer ratings & reviews, and may include incentivized reviews.
The product is highly effective at loosening and freeing up rusted, seized, or stuck parts and fasteners, outperforming other leading penetrating oils. A small amount goes a long way, making it a cost-effective solution. It has a pleasant smell and leaves a protective film to prevent future rust and...
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This summary is AI-generated from ratings and reviews across multiple languages.
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1 to 4 of 1109 Reviews .
1 – 4 of 1109 Reviews
Roseburg,Oregon
Review 1

Awesome product

5 days ago
I’ve been using it for years. It’s worked well for my guns and all my automotive jobs I do.

Yes, I recommend this product.

Originally posted on kroil

Kingsport, Tennessee
Review 1

Lawn mower blades bolts

10 days ago
Had the bolts for zero turn lawn mower blades over tightened and rusty jacked the mower up and sprayed each bolt let sit for about 10 mins and they came off without damaging the blade bolts

Yes, I recommend this product.

Originally posted on kroil

Columbus,OH
Review 1

Great Product

10 days ago
I have been using Kroil for many years. I have MG Midget that I am restoring and updating. Kroil allows me to remove many rusted nuts and other screwed in devices such as drain plug fittings.

Originally posted on kroil

Eastford, CT
Review 1

Excellent product but minor issue.

13 days ago
Great product. Actually my always go to. I have been using for years. Tough parts have to sit a bit but planning job steps help with this. Only problem I come across is near end of can there is always liquid in it but won’t spray. It must be a delivery system issue because if I take a nozzle from a new can it seems to work for a little while longer. Other than that I recommend and swear by it daily.

Originally posted on kroil