Best Penetrating Fluid in 2023: Our Top 20 Picks

Sometimes it might be quite difficult to find the best penetrating fluid. With every niche market offering so many different products, it makes sense that this is the case.

Unfortunately, this very fact can make it incredibly difficult to find the item that best suits your needs, which is why we’ve put together this penetrating fluid buying guide.

Our Favorites:

#PreviewProduct
1 CRC Knock’er Loose Penetrating Solvent 03020 – [Reddish] 13 WT. Oz., Industrial Grade Penetrating Solvent and Lubricant CRC Knock’er Loose Penetrating Solvent 03020 – [Reddish] 13 WT. Oz., Industrial Grade...
2 Free All Rust Eater Deep Penetrating Oil, 11 oz Aerosol Free All Rust Eater Deep Penetrating Oil, 11 oz Aerosol
3 B'laster 16-PB Penetrating Catalyst 11-Ounces (2 Cans) B'laster 16-PB Penetrating Catalyst 11-Ounces (2 Cans)
4 Blaster 16-PB Penetrating Catalyst - 11 oz Blaster 16-PB Penetrating Catalyst - 11 oz
5 Kano Kroil Penetrating Oil, 8 ounce liquid Kano Kroil Penetrating Oil, 8 ounce liquid
6 Kroil Original Penetrating Oil, Industrial Size, 16.5 oz. aerosol (KanoLab Aerokroil) Kroil Original Penetrating Oil, Industrial Size, 16.5 oz. aerosol (KanoLab Aerokroil)
7 Blaster PB PENETRATING Lubricant - 11 OZ (12 Pack) Blaster PB PENETRATING Lubricant - 11 OZ (12 Pack)
8 Gasoila Free All Deep Penetrating Oil with Precision Straw for Pinpoint Accuracy - The Original Rust Eater, 11 oz Aerosol Gasoila Free All Deep Penetrating Oil with Precision Straw for Pinpoint Accuracy - The Original Rust...
9 Blaster Corp 16-PB-DS Blaster Penetrating Catalyst Big Shot Can - 11 Oz. Blaster Corp 16-PB-DS Blaster Penetrating Catalyst Big Shot Can - 11 Oz.
10 Kroil Penetrating Oil (Aerokroil), 16.5 oz. Aerosol, Pack of 12 Kroil Penetrating Oil (Aerokroil), 16.5 oz. Aerosol, Pack of 12
11 Free All Rust Eater Deep Penetrating Oil, 11 oz Aerosol, 2-Pack Free All Rust Eater Deep Penetrating Oil, 11 oz Aerosol, 2-Pack
12 Royal Purple 05000 Maxfilm High Performance Multipurpose Synthetic Penetrating Spray Lubricant - 11 oz. Royal Purple 05000 Maxfilm High Performance Multipurpose Synthetic Penetrating Spray Lubricant - 11...
13 Zep 45 Sidewinder Super Penetrating Oil Aerosol - 14 Ounces (Case of 12) B41801 - Great for Frozen and Corroded Parts Zep 45 Sidewinder Super Penetrating Oil Aerosol - 14 Ounces (Case of 12) B41801 - Great for Frozen...
14 SQ Penetrating Catalyst Oil 17-6 Mechanic's Aid, 12 Pack, 11 Oz per can SQ Penetrating Catalyst Oil 17-6 Mechanic's Aid, 12 Pack, 11 Oz per can
15 Kroil Penetrating Oil (Aerokroil), 13 oz. Aerosol, Pack of 12 Kroil Penetrating Oil (Aerokroil), 13 oz. Aerosol, Pack of 12
16 Trick Shot® Penetrating Lubricant | Non-Toxic, Eco-Friendly Penetrating Oil with Straight-Shooter Nozzle | Industrial Strength Rust Penetrating Spray Lubricates, Protects & Cleans | 11-Ounces, 1 Can Trick Shot® Penetrating Lubricant | Non-Toxic, Eco-Friendly Penetrating Oil with Straight-Shooter...
17 Chain & Cable Penetrating Fluid - Lubriplate Aerosol 11 oz. Spray ISO Grade 32, Penetrating Fluid, L0135-063 Chain & Cable Penetrating Fluid - Lubriplate Aerosol 11 oz. Spray ISO Grade 32, Penetrating Fluid,...
18 Kroil Penetrating Oil (Aerokroil), 10 oz. Aerosol, Pack of 12 Kroil Penetrating Oil (Aerokroil), 10 oz. Aerosol, Pack of 12
19 CRC Knock’er Loose Plus Penetrating Solvent 03027 – [Reddish] 11.5 WT. Oz., Industrial Grade Penetrating Solvent and Lubricant w/ Freeze Shock Action CRC Knock’er Loose Plus Penetrating Solvent 03027 – [Reddish] 11.5 WT. Oz., Industrial Grade...
20 WD-40 Specialist Penetrant with SMART STRAW SPRAYS 2 WAYS, 11 OZ WD-40 Specialist Penetrant with SMART STRAW SPRAYS 2 WAYS, 11 OZ

The 20 Best Penetrating Fluid Reviews:

Bestseller No. 1
CRC Knock’er Loose Penetrating Solvent 03020 – [Reddish] 13 WT. Oz., Industrial Grade Penetrating Solvent and Lubricant
  • CRC INDUSTRIES: A market leader that offers impeccably designed chemical solutions to maintain, protect and repair different marine, heavy-duty motor vehicles, industrial-grade engines, household tools and electrical equipment
  • PENETRATING SOLVENT: A unique solvent that penetrates surfaces to quickly dissolve rust, scale, gum, grease, and corrosion; Helps to remove and prevent rust
  • UNIQUE FORMULA: Knock’er Loose offers a 50-state compliant formula that provides great performance in easing the disassembly of tools, automobile engines, plant machinery, and other equipment for routine maintenance
  • APPLICATIONS: Knock’er Loose works effectively to dissolve and loosen rust and corrosion from couplings, bolts, fittings, locks, washers, sliding mechanisms, hinges, bushings, nuts, and other frozen components
  • PRODUCT SPECIFICATIONS: Knock'er Loose is available in a 13 wt. oz aerosol can
SaleBestseller No. 2
Free All Rust Eater Deep Penetrating Oil, 11 oz Aerosol
  • Penetrates rust, scale and corrosion to free parts and assemblies instantly
  • Loosens red and white lead, tar, grease, carbon and graphite deposits
  • Will free up all threaded pipe connections, rusted machine screws, bolts, nuts, clamps for mufflers and tail pipes, pillow blocks, universal joints and locks
  • Contains no silicones, making it safe in paint and shop environments
  • No more torching, drilling, hammering or chiseling
SaleBestseller No. 5
Kano Kroil Penetrating Oil, 8 ounce liquid
  • UNRIVALED STRENGTH: Attacks corrosion to free bolts, fasteners and other mechanical components
  • UNIQUE FORMULA: Removes rust and carbon deposits without attacking metal, leaving long-lasting protection
  • QUICK ACTING: Penetrates faster and deeper than similar products
  • FLEXIBLE USAGE: Use on any corroded threads or tight parts
  • UNSEIZE THE DAY: Makes the toughest maintenance jobs easier, faster, safer, and simpler to execute
Bestseller No. 6
Kroil Original Penetrating Oil, Industrial Size, 16.5 oz. aerosol (KanoLab Aerokroil)
  • UNRIVALED STRENGTH: Attacks corrosion to free bolts, fasteners and other mechanical components
  • UNIQUE FORMULA: Removes rust and carbon deposits without attacking metal, leaving long-lasting protection
  • AEROSOL APPLICATION: Penetrates faster and deeper than similar products thanks to aerosol applicaiton
  • FLEXIBLE USAGE: Use on any corroded threads or tight parts
  • UNSEIZE THE DAY: Makes the toughest maintenance jobs easier, faster, safer, and simpler to execute
SaleBestseller No. 8
Gasoila Free All Deep Penetrating Oil with Precision Straw for Pinpoint Accuracy - The Original Rust Eater, 11 oz Aerosol
  • NEW Precision Straw allows you to spray penetrating oil in a wide-aim nozzle or through the straw-nozzle for pinpoint accuracy
  • Penetrates rust, scale and corrosion to free parts and assemblies instantly
  • Will free-up all threaded pipe connections, rusted machine screws, bolts, nuts, clamps for mufflers and tail pipes, pillow blocks, universal joints and locks
  • Loosens red and white lead, tar, grease, carbon and graphite deposits
  • Contains no silicones, making it safe in paint and shop environments
Bestseller No. 9
Blaster Corp 16-PB-DS Blaster Penetrating Catalyst Big Shot Can - 11 Oz.
  • No.1-Selling Penetrant
  • Breaks Free Rusted or Frozen Parts
  • Protects Against Further Rust and Corrosion
  • Use on Automotive, Industrial, Marine, Plumbing & Other Equipment
SaleBestseller No. 11
Free All Rust Eater Deep Penetrating Oil, 11 oz Aerosol, 2-Pack
  • Penetrates rust, scale and corrosion to free parts and assemblies instantly
  • Loosens red and white lead, tar, grease, carbon and graphite deposits
  • Will free up all threaded pipe connections, rusted machine screws, bolts, nuts, clamps for mufflers and tail pipes, pillow blocks, universal joints and locks
  • Contains no silicones, making it safe in paint and shop environments
  • No more torching, drilling, hammering or chiseling
Bestseller No. 12
Royal Purple 05000 Maxfilm High Performance Multipurpose Synthetic Penetrating Spray Lubricant - 11 oz.
  • Maxfilm is a high film strength, multipurpose, synthetic lubricant/penetrant that deeply penetrates, cleans and loosens rusted parts and provides long lasting protection against wear, rust and corrosion. It is ideal for loosening stuck parts such as nuts, bolts, hinges and locks; lubricating power tools, open gears, guns and rollers; preserving parts in storage and for use as a tapping fluid. It contains Synerlec technology.
  • Loosening stuck parts such as nuts, bolts, locks, hinges, and much more
  • Lubricating power tools, hinges, chains, rollers, open gears, fishing tackle, lawn equipment and more
  • Preserving and protecting parts in storage against rust and corrosion
  • Special Shipping Information: This item cannot be returned and has additional shipping restrictions
Bestseller No. 13
Zep 45 Sidewinder Super Penetrating Oil Aerosol - 14 Ounces (Case of 12) B41801 - Great for Frozen and Corroded Parts
  • SUPERIOR PENETRANT: Loosens frozen and corroded parts quickly while also providing a thin layer of lubrication and corrosion protection
  • FAST-SPREAD: Contains no ozone depleters or chlorinated solvents, increasing compliance with regulations
  • DISSOLVES GREASE: To help reduce clean-up time on equipment and helps saves time and money because of its versatility
  • 360-DEGREE VALVE: Allows for upright and upside down spraying and includes an extension tube for hard to reach places
  • Degreasing Properties: Dissolves grease to help reduce clean-up time on equipment
Bestseller No. 16
Trick Shot® Penetrating Lubricant | Non-Toxic, Eco-Friendly Penetrating Oil with Straight-Shooter Nozzle | Industrial Strength Rust Penetrating Spray Lubricates, Protects & Cleans | 11-Ounces, 1 Can
  • ECO FRIENDLY LUBRICANT - “Go Green” Remove harmful chemicals from the environment, and your workplace. Use Trick Shot’s non-toxic, eco friendly, Pet Friendly, and non flammable formula as a lubricant, penetrant, and solvent for countless industrial uses.
  • INDUSTRIAL LUBRICANT - Low evaporation rate leads to optimal lubrication with less applications. Reduce friction and wear on all moving parts. Dual performer as a rust inhibitor and metal protectant. Approved as a food-grade lubricant (NSF H-1).
  • PENETRATING OIL FOR RUSTY BOLTS - Automotive penetrating oil that performs as a rust remover, corrosion inhibitor, and penetrant lubricant. Releases surface tension and breaks loose seized parts. Creeps into close tolerance areas and even climbs bolt threads vertically to unfreeze stuck parts.
  • INDUSTRIAL CLEANER - Tar remover, scuff mark remover, adhesive remover, grime remover spray, permanent marker remover, and degreaser spray all in one. Food grade cleaner and degreaser; Kitchen safe cleaner, fryer cleaner, oven degreaser, grill degreaser and non flammable grill spray.
  • MULTI-USE LUBRICANT - Trick Shot’s product versatility has led to success across all industries performing as a food machinery lubricant, stainless cleaner spray, tapping fluid, cutting fluid, release agent, form release spray, asphalt release agent, mold release spray, bike chain lube, contact cleaner, equipment cleaner, welding spray.
Bestseller No. 19
CRC Knock’er Loose Plus Penetrating Solvent 03027 – [Reddish] 11.5 WT. Oz., Industrial Grade Penetrating Solvent and Lubricant w/ Freeze Shock Action
  • CRC INDUSTRIES: A market leader that offers impeccably designed chemical solutions to maintain, protect and repair different marine, heavy-duty motor vehicles, industrial-grade engines, household tools and electrical equipment.
  • PENETRATING SOLVENT: A unique penetrant that immediately drops the temperature of the area in contact with the spray. The freeze shock action cracks rusted surfaces, allowing it to reach deeper and work more effectively than other penetrants.
  • UNIQUE FORMULA: Knock’er Loose offers a 50-state compliant formula that provides great performance in easing the disassembly of tools, automobile engines, plant machinery, and other equipment for routine maintenance.
  • APPLICATIONS: Knock’er Loose works effectively to dissolve and loosen rust and corrosion from couplings, bolts, fittings, locks, washers, sliding mechanisms, hinges, bushings, nuts, and other frozen components.
  • PRODUCT SPECIFICATIONS: Knock'er Loose is available in an 11.5 wt. oz aerosol can.
SaleBestseller No. 20
WD-40 Specialist Penetrant with SMART STRAW SPRAYS 2 WAYS, 11 OZ
  • Equipped with an attached Smart Straw nozzle that Sprays 2 Ways to offer more control. Spray or stream and never lose the straw again
  • Low odor formula penetrates deep into crevices, threads and seams to break the bonds that hold stuck parts together. Ideal for rusted or seized nuts, bolts, threads, locks, and chains
  • Safe on metal, rubber and plastic parts. 50-state VOC Compliant
  • Fast-acting formula works on contact and leaves behind a protective layer that prevents rust and corrosion from re-forming
  • WD-40 Brand believes in creating high-quality products that will not fail in extreme conditions. Professionals rely on WD-40 Specialist to get the job done right

Last update on 2023-01-12 / Affiliate links / Images from Amazon Product Advertising API

How to find the best penetrating fluid?

Here, we’ll be going over a number of factors that you can use to ensure that you’re purchasing the best penetrating fluid for you.

Regardless of which type of item you’re looking to buy, chances are that there are existing buying guides on the internet, all of which aim to give you good penetrating fluid recommendations.

Despite these recommendations, however, it’s always a good idea to do your own research. In addition to this research, asking yourself the following questions is also super helpful:

  • What features does the penetrating fluid need to have to be perfect for my needs?
  • What is my budget?
  • Do I need to purchase a certain brand?

Once you’ve answered these questions and have a good idea of what you’re looking for and the buying process becomes much easier. Keep in mind that when looking for the best product, there’s no need to rush. In fact, very rarely are the ideal products found by choosing the first one you see or by basing your decisions on only one factor. Take your time and enjoy the process!

Now, with the answers to the previous questions in mind, we urge you to use our upcoming buying guide for penetrating fluid to find what you’re looking for:

Brand

In some cases, the brand of penetrating fluid is very important. For example, if you’re looking for an item that works in tandem with another, you might very well need both products to be the same brand. If this is the case, it’s vital to pay attention to this factor, as choosing the wrong product can mean the difference between wasting your money and buying a great product that functions as it should.

Features

The features in any given penetrating fluid are important because they can dictate which version of an item you need and how much money you need to spend. Consider all the key features that you want your item to have and don’t settle for anything that doesn’t check at least ¾ of your boxes.

Reviews

Customer reviews about penetrating fluid are crucial – especially when you’re buying a product that costs a lot of money or serves a big importance. Luckily, most products can be found online, which means that it’s common for there to be scores of customer reviews from those who have already purchased any given product.

Pay attention to these reviews. Take note of the pros and cons that they mention, and factor these into your big decision. In some cases, you’ll be forced to sacrifice one con in order to gain a particular pro, but being aware of the potential con is going to be beneficial in either case.

Quality

Of course, quality is key. You don’t want to purchase a low-quality product. If you do, you run the risk of your item breaking, not working properly, or otherwise proving to be very disappointing, as well as a waste of money.

You can compare penetrating fluid quality by researching what your potential purchases are made from, contrasting the individual items against each other to discern which one is made of the best materials.

Warranty

Warranty isn’t always going to be important, but it definitely can be. This is especially true if the item in question is tech-related or expensive. A good warranty will be valid for an extended time after purchase and cover a variety of problems ranging from item defects to random accidents, water damage, and other miscellaneous events that could ruin your product.

Conclusion

The quest to find the best penetrating fluid can be daunting – but it doesn’t have to be. It can be made much easier by asking yourself a few simple questions and then thinking critically about the items you want to buy. Consider their features, quality, brand, warranty, and customer reviews and you’re more likely to make a great purchase.