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Ships within 48 hours · Estimated delivery Jul 13 - Jul 18
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Description
Kroil 5 Gallon PailThe Kroil 5 Gallon Pail of penetrating oil loosens frozen metal parts the professional way, with its original penetrant liquid formula. When it comes to freeing corroded items in tough spaces, nothing rivals powerful, industry proven Kroil penetrating oil. Used and trusted by pros and experienced DIYers alike, Kroil quickly loosens rusted nuts and bolts, frees frozen shafts, pulleys, and more. No space is too tight to reach, thanks to Kroils ability
The Kroil 5 Gallon Pail of penetrating oil loosens frozen metal parts the professional way, with its original penetrant liquid formula. When it comes to freeing corroded items in tough spaces, nothing rivals powerful, industry-proven Kroil penetrating oil. Used and trusted by pros and experienced DIYers alike, Kroil quickly loosens rusted nuts and bolts, frees frozen shafts, pulleys, and more. No space is too tight to reach, thanks to Kroil’s ability to penetrate the smallest opening, thread or crevice. Corrosion meets its match, as Kroil helps remove and prevent rust, cleans and lubricates, and displaces moisture.
Since 1939, Kano has been a leading producer of penetrating oils and lubricants in the industrial maintenance, repair, and operations (“MRO”), and professional specialty trades. When stuck on a job, use Kroil.
FEATURES
- ATTACKS CORROSION: Frees bolts, fasteners and other mechanical components
- REMOVES RUST AND CARBON DEPOSITS: Will not attack or damage metal
- PENETRATES FASTER: Penetrates quicker and deeper than similar products
- WORKS EVERYWHERE: Use on any corroded threads or tight parts
-
SIMPLIFIES REPAIRS: Makes the toughest maintenance jobs easier, faster and safer to execute
- PENETRATES DEEPER: Penetrates the smallest spaces, threads and openings
| SPECIFICATIONS | DETAILS |
|---|---|
| PRODUCT TYPE |
Penetrating Oil
|
| CONTAINER TYPE |
Pail
|
| CONTAINER SIZE | 5 gallons |
| NET WEIGHT (LBS) | 41 |
| DIMENSIONS (L x W x H) |
10.875" x 10.875" x 13.625" |
| UPC |
857236004100 |
| MANUFACTURER PART NUMBER | KL051 |
| APPEARANCE | Reddish |
| SOLUBILITY DESCRIPTION | Negligible in Water |
| LUBRICANT TYPE | Penetrating |
| CORROSION INHIBITOR | Yes |
| RELATIVE DENSITY | 0.8596 |
| SPECIFIC GRAVITY |
0.864 at 68° F (20° C) |
| UPPER FLAMMABILITY LIMIT |
10.90% |
| LOWER FLAMMABILITY LIMIT |
0.60% |
| VOC | 50-state VOC Compliant |
| VOC CONTENT |
14.97% |
| VISCOSITY |
3.18 cSt at 104° F (40° C) |
| ODOR | Solvent |
| FLASH POINT |
132°F (55.5°C) TOC |
| BOILING POINT |
270° F (132° C) |
| NSF CATEGORY CODE | H2 |
| NSF NUMBER | 165745 |
| RESTRICTIONS | CA Prop 65 |
| APPLICATIONS |
Frozen Nuts, Bolts, Bearings, Studs, Pulleys, Shafts, Screws, Pins, Conveyors, Corroded Threads, Seized Metal Fasteners, Bearings, Pipes, Valve Guides, Frozen Engines, Flywheels, Chains and Sprockets, Air Tools, Guns, Rifle Barrels, Parts and Tools, Equipment Disassembly |
| BRAND | Kroil |
| MANUFACTURER | Kano Laboratories |
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.0 ★★★★★
Based on 67 reviews
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Product Reviews
★★★★★ 5
BUY THIS ONE!
Model: NewSLS50_52
This is one of the good ones. There are other brands just as good, and manny brands are worse, but this handles well, rolls down easily, doesn't come off at all easily, and adapts to dips and curves like a champ.
Appropriately heavy and dead, I'm happy with the way it smothers panel resonances and even at muffling direct sound, like a big hand over my Uncle Harry's eternally noisy mouth. You can rip the foil but you have to work hard at doing that.
Remember to buy a brayer; you can roll overlaps nice and thin. Also remember to pre-wipe the sheet metal with a decent solvent like acetone or Stoddard/Varsol. It should last forever.
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Reviewed in the United States on April 26, 2025
★★★★★ 5
Good stuff, but watch the temp
Model: NewSLS50_52
I used this in my single cab pickup truck (89 ford.) It only took half the box (10 sheets or 25 square feet) to do the floors, but I bought the big box because I plan to do the doors, back wall, and maybe the roof as well. One thing I learned is that the temperature matters when you’re doing the installation. It was around 55F when I started in the evening, and when it dipped down into the 40s the sheets would not stick to the metal, and were hard to compress with the roller. That’s why I ended up only doing the floors and not any vertical surfaces; i will have to wait for a nice hot day. The other thing is that the foil layer on top is razor sharp at the edges, definitely wear gloves! I didn’t notice until after but I have little papercuts all over my fingers. Aside from those things, the install was easy and straightforward. The sheets cut easily with scissors, and any goo that ends up on your hands or scissors can be cleaned up with acetone (nail polish remover), or lacquer thinner. I would use this stuff again.
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Reviewed in the United States on November 16, 2023
★★★★★ 5
Very efficient!
Model: NewSLS50_52
Amazing the difference it makes on dumping the noise. Very easy to install. Pell and stick literally! Great!
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Reviewed in the United States on November 23, 2025
★★★★★ 5
Awesome filter! Nasty campground water no longer...
Style: Standard Filter
I have run these for years in my RV and they work killer! Here's some more in-depth thoughts:
Pros:
- These work better than I had expected. Just hook them up to the water source, hook your hose to it, run it to your trailer and viola` clean and good tasting water. Some of the places we have visited have had water that I wouldn't feed to my worst enemy. With this thing attached, it's very good tasting.
- I like the hose attachment that comes with this to aide in adding flexibility to the system and not put too much strain on the system. I have bought so many of these, I now use one attaching the filter to the nozzle, one out of the filter to my hose, and one attaching my hose to the trailer.
Notes:
- I will note that the manufacturer suggesting using these for only 1 camping season, and this makes sense. That's what I do, and it seems to work out great. It's not too much $ to replace every season.
- Another note, when first putting this filter into service (just the first time of the season, subsequent hook-ups wont do this) there will be a bunch of carbon (black in the water) that comes out of the faucet in your trailer. This is perfectly fine, safe, and of no issue. This is the filter breaking in and getting the extra carbon out of the system. There is no health concern with this happening. I just run the faucet until it clears up, and then we're good to go for the rest of the season.
- Last note, when we unhook from our camping spot, I swing the filter in my hand with my arm extended (using centrifugal force, not centrifical, look it up) to get the residual water out of the filter so it doesn't sit in there and spoil. I do this until I get most of the water drops to stop, leave it out on the counter to dry, and boom, it's perfect the next time.
Cons:
- None to report
Overall this filter does a great job taking care of some seriously nasty campground water that we've encountered all over the Southwest US. I cannot recommend it any higher.
I hope I have helped your purchasing decision of this product. I am not affiliated with the manufacturer, seller or any other product related company nor am I under any obligation to write this review. I do this for my own fun and to help others in the Amazon Community! Feel free to comment and let me know if I have helped you, and please note below if this review was able to help. If you should have any questions, please post them below in the Comments. I try to answer all inquires in a timely fashion to the best of my ability.
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Reviewed in the United States on April 26, 2017
★★★★★ 5
Clean, Great-Tasting Water Made Easy with Camco Tastepure
Style: Standard Filter
I installed the Camco Tastepure RV inline water filter on our rig, and it’s another example of why I’ve come to trust Camco products. The reinforced strain relief hose is a small but incredibly smart feature—it keeps the connection between the filter, hose, and RV kink-free and easy to manage. Setup was simple, and the whole system feels sturdy and well-designed.
A tip I’ve learned through experience: before putting a new filter into service, run water through the internal charcoal filter for 30 - 45 seconds. This flushes out any loose charcoal bits and ensures the first water you drink is crystal clean and tastes amazing. After that, connecting to the RV is straightforward, and you immediately notice how much better the water tastes.
Whether filling up a glass or cooking, it’s made a real difference in our RV experience. Reliable, easy to use, and excellent tasting water every time - I highly recommend this to any RV owner who cares about water quality on the road.
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Reviewed in the United States on January 10, 2026