10 best penetrating oils

Product description

The Oil That Creeps and Loosens Frozen Metal Parts.



A scientific principle reduces the surface tension so that this amazing solvent creeps into openings as small as one millionth of an inch. Aerokroil is the aerosol version of Kroil that loosens frozen metal joints in minutes. Dissolves gum, dried grease, and oil -- without attacking the metal. Displaces water, provides lubrication and prevents rust.

• Kano Aerokroil Penetrating Oil, 10 oz. aerosol (AEROKROIL)

User questions & answers

Question:	Can I use it for the convertible top hinges instead of grease
Answer:	No it's a penetrating oil
Question:	How does kroil spray penetrating oil work on old bathtube faucet stems
Answer:	Never tried it on that but Kroil is a penetrating oil that lubes and dissolves rust. Needs to be applied and allowed to work for several hrs. No guaranties but it has never failed to work for me.
Question:	Can I use Kroil on a frozen water valve
Answer:	This would not be wise as you cannot guarantee there will be no cross contamination ("penetrating oil"). If the valve is frozen it is best to replace it. Aero kroil is a great product but if you do use it be sure to flush the system well. Think about the answer by Larry, this creeps into places you won't believe.
Question:	Kroil Vs PB Blaster
Answer:	Kroil is better, IMO. I've used it on aircraft engines for over 30 years to free hardware that's been in place for who know how long. A friend used it to free up a frozen 1955 Studebaker engine. He had tried several other products (diesel fuel, PB Blaster, WD40, etc.) over the years on other cars and most didn't work without letting it sit for several days or weeks. He poured some Kroil into each spark plug hole in the Stude, and the next morning he could turn it over by hand.

Product description

Features and benefits: Free stuck nuts, bolts or locks dissolves rust and cuts through grease quickly penetrates corrosion reformulated new clear formula use on garden hose nozzles, clamps, pipes and frozen mechanisms premium lubricants with formulations designed for specific applications.

• Liquid Wrench 1 lubricant aerosol, 11 oz.
• Solid block desiccant core: A composite of molecular sieve and activated
• This is manufactured in United States
• A versatile multi-use penetrant
• Contains a precision spray straw
• A versatile multi-use penetrant
• Contains a precision spray straw

User questions & answers

Question:	Does this form a foam when sprayed on ??? J. Payne
Answer:	No, it is more like the consistency of WD-40. It bubble a little when you first spray it (probably from the propellant) but it leaves more of a thin (penetrating) oil residue.
Question:	Is it safe to use for breaking loose rusted stuck exhaust bolts? i know it is flammable but i figure i could clean it off after i get the bolts out
Answer:	It's totally safe
Question:	After it dries, does anyone knows if it will prevent rust
Answer:	It does prevent rust. Been using liquid wrench for 40 years to prevent rust on my tools stored in my garage. After iI use a metal tool I spray it with Liquid Wrench. Never lost a tool due to rust.
Question:	Can i use liquid wrench penetrating oil on a large pvc water shut off valve? it runs to a waterfall. it has been buried for years and won't budge
Answer:	It should not hurt the pvc. If valve has been buried, I would first clear around it then clean it as best as possible. Take a hair dryer or heat gun(be very careful with heat gun) and warm, just warm valve, let cool and warm again. Apply liquid wrench let sit 10-20 mins. Use valve wrench to try and open valve, repeat id necessary. Heat done right(low) ought not cause any problems with liquid wrench which is a flammable.

Product features

Liquid Wrench Penetrating Oil

Tough and trusted, Liquid Wrench Penetrating Oil is fast-acting, anti-seize formula quickly frees stuck nuts, bolts and locks, dissolves rust and cuts through grease.

Cut The Rust

Liquid Wrench Penetrating Oil with Cerflon is a fast-acting, anti-seize formula that penetrates corrosion, and loosens rusted bolts and various parts. With its balance of high lubricity, high solvency, low viscosity, and low surface tension, this product can cut through even the toughest of rust. 100% Guaranteed!

Best Uses

Liquid Wrench Penetrating Oil provides a perfect solution to problems concerning stuck bolts, locks and more. For any task large or small, break through corroded and stuck parts on the first go around. This product is for you!

Product description

Facilitates fast and easy disassembly of mechanical components, fittings, assemblies and other fasteners. Clear formula contains no dyes and leaves no mess. Convenient 360 spray valve - can be sprayed from any position

• Eases disassembly of mechanical equipment, fittings and fixtures
• Instantly penetrates minute and tightly filles crevices
• Thin, non-drying film
• Volatile organic compounds (VOC) compliant
• NSF H2 registered for use in meat and poultry plants

User questions & answers

Question:	Can this be used on wood
Answer:	This product has a poison warning on the label. Try CRC 03081 General Purpose Food Grade Machine Oil Spray.

Product description

The Oil That Creeps and Loosens Frozen Metal Parts. A scientific principle reduces the surface tension so that this amazing solvent creeps into openings as small as one millionth of an inch. Kroil loosens frozen metal joints in minutes. Dissolves gum, dried grease, and oil -- without attacking the metal. Displaces water, provides lubrication and prevents rust.

• Safe for use on metal, rubber, plastic and painted surfaces
• Features a spout for convenient and precise application
• Practically no expiration date
• Can be used on a wide range of hardware, tools and equipment
• Does not harden, gum or expire

User questions & answers

Question:	will it unstick pistons
Answer:	Depends on what made it stick. If it is a mechanical problem like over heating are broken rings, NO.If it is old dirt build up then maybe. Carbon at the top of the cylinder probably.
Question:	What is the difference between the Kroil penetrating oil and the lube???? I plan on using either for gun maintenance, which is better
Answer:	Use both Kano and a premium gun lube. The Kroil should be used for rust removal and bore maintenance - its amazing how much stuff Kroil will remove from a "clean" bore. It is not an ideal operating lube, being too thin to persevere. It was designed as a cutting and penetrating oil. Really great stuff for lubing drill bits during cutting. Use premium lubes on action friction surfaces. Anything from Microlon, Break Free, or probably a dozen other manufacturers.
Question:	I have a bolt that goes through a 5" collar. The bolt and the collar are fused together by rust. Will this product penetrate through the whole
Answer:	That's pretty much a see what happens. To my knowledge this is the best penetrating oil available anywhere. Give it a try. I would give it about 5 to 10 applications, with a minute or two in between then give it a try. Give it time to work thru. Good luck.
Question:	Would this product be safe and effective for removing rust from a blued firearm
Answer:	It will not harm your blued finish. You would not believe how well this works, it is just amazing. I used it on firearms with a little bit of rust and cleans things right up with no issues. I also like to plug The end of the barrel filled with Kroil and let it sit overnight 24 hours. I do this after a thorough cleaning of my fire arm and barrel that looks like his perfectly clean. 24 hours after I've soaked the Kroil in the barrel you would not believe the amount of blacks soot/junk that came out after the soaking. Also I have used it on squeaky doors, the door on my Dodge Ram starting to squeak, one application no squeak whatsoever. I swear this stuff must be waterproof. Even going to use it on my shot on my truck when I replace my shocks to help loosen the bolts. You will definitely not be disappointed. Definitely buy it, but it, but it.

Product description

great products

• Creeps into cracks, seams, threads and joints better than the competition
• Volatile organic compounds (VOC) compliant
• NSF H2 registered for use in meat and poultry plants
• Lubricating residue prevents corrosion
• Eases the diassembly of machinery, tools and equipment for routine maintenance and emergency repairs
• Loosens rusted and corroded buts, bolts and frozen components

User questions & answers

Question:	Is this a case or is it a single
Answer:	I prefer this to Kroil
Question:	How does this compare to Kroil
Answer:	Not sure what you are trying to do, but we use the Knocker loose for rusted and hard to remove fasteners from various types of material, if you are having an issue with a bolt or some sort of fastener that you are trying to remove this product works great for that aspect,,hope this helps
Question:	does this work on cast iron
Answer:	Its all opinion. But I am a 30 professional auto technician/shop owner and my opinion is KL or aerokroil is best. PB does great advertising.
Question:	Why do so many more people seem to use and recommend pb blaster, compared to knock'er loose? is pb just hype or is kl actually better
Answer:	I would say no but it is a nice bottle... Home depot sells a good spray bottle but 32oz i guess ur looking for 16? Amazon sells some empty ones for chemicals but ive never tried them. Good luck!

Product description

Gasoila Free All actually has a rust eating agent in it to not only penetrate rust but to help desolve it. With Free All you use less force to loosen that rusted bolt so there is less chance of breaking it. Loosens red and white lead, tar, grease, carbon and graphite deposits. No more torching, drilling, hammering or chiseling. Specially formulated, rust eating agent is ideal for plumbing, automotive, marine and general industrial applications. Will free up all threaded pipe connections, rusted machine screws, bolts, nuts, clamps for mufflers and tail pipes, pillow blocks, universal joints, locks, etc. Contains NO silicones, making it safe in paint and shop environments.

• 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

User questions & answers

Question:	I have an old lawn mower rusted on the paint. will it clean off the rust? and not hurt the paint
Answer:	Free All is not recommended on bicycle chains as this penetrating oil is used to break down rust bonds. For a lubricating oil, please refer to our additional product - Lube-It All.
Question:	Would this remove baked on grease from pans
Answer:	Yes it dissolves the rust, industrial strength Free All spreads deep into rusted or frozen parts, freeing them in seconds with ease!
Question:	Anyone ever use it on bicycle chain
Answer:	wear gloves with long cuffs & old clothing if you get it on your skin it makes a dark spot that last for 3 daysotherwise it's not a problem it is water washable
Question:	As the title says "rust eater", what does this mean? Does it actually create a chemical reaction to dissolve rust? or is this just bs advertizing
Answer:	As a Ablebody Seaman (Unlimited, Any Waters) and US NAVY VET. I've probably busted more rust than 99.9% of anyone hear. While working on the TW Nelson (Mobile oil's Survey Vessel) we helped develop this stuff. Also aboard Supertankers for several oil Company's we got to try several different Brands of rust converter/reformer.. We brushed it. rolled it. sprayed it ( w/ air gun pick-up) and they all worked better than all previous methods.. and there were a bunch!!! In my opinion Corroseal was the Best of all!! I still buy it in quart & gallon sizes (when required as it goes a long way) DO NOT LET ANY OF THESE FREEZE!!! WATER BASED & WILL TURN INTO A ROCK. Talk about wasted $$$? Don't waste time & money on Rattle Cans as caps k-rap-out way before product does! U want to spray a large area? use air-sprayer w/ large orifice, more thin coats better than 1 thick. let dry. Just Bust off any Scale & Leave the rust. wash down, let dry then get after it! Just give up on acid & paste & all that k-rap. (I took more accidental showers in Ospho than I care to remember, before the new stuff) Wan-kers Away. Old Salty

Product features

Less Sprays

Free All works from start until finish with our can allowing 100% of oil to be released. With our 3-part formula, you can use less sprays to get the job done.

Less Torque

With Free All Deep Penetrating Oil, you will be able to use 30% less torque to break free your rusted or frozen parts compared to other penetrating oils.

Less Time

Our penetrating oil spray starts working right away and doesn't evaporate as quickly, so it keeps eating rust until the job is complete.

Product description

Blaster Products (BLP16-PB)

User questions & answers

Question:	Is this the same product people call "pb blaster penetrating oil
Answer:	Yes, It absolutely is

Product description

A product that loosens everything except your wallet. The Mechanic's aid penetrating oil combines oils, corrosion inhibitors, surfactants and molybdenum in a highly penetrant formula that works on nuts, bolts, corroded pipe threads, hinges, clams, locks, latches, frozen mechanisms, weapons and many more. Ideal for industrial, automotive, marine and agricultural applications.

• Penetrating oil
• Low viscosity
• Rust remover
• 50 state compliant

Product description

Lubricates - carries lubrication into infinitely small spaces. Dissolves rust - breaks down the crystals of iron oxide so that stuck-together parts can be loosened easily. Resists wetting - a SiliKroil surface repels water or moisture, thereby avoiding corrosion.

• Lubricates - carries lubrication into infinitely small spaces.
• Dissolves rust - breaks down the crystals of iron oxide so that stuck-together parts can be loosened easily.
• Resists wetting - a SiliKroil surface repels water or moisture, thereby avoiding corrosion.

User questions & answers

Question:	If I buy 20 units what the expiration date of the product
Answer:	there is no expiration date on the product
Question:	Is this better than regular Kroil
Answer:	In My Opinion It Is Better
Question:	This pertains to Lennox gas f/air furnace. Would kroil be beneficial on vent blower bearings -(no oiling ports
Answer:	Keep in mind this is a penetrating oil designed to work on loosening stuck bolts and nuts. Hence you would need to set up a oiling routine. You may also want to try powdered graphite in suspension available at any auto parts store.
Question:	what is the difference between aero kroil and sili kroil aerosoles? I want to loosen a hinge on a door knocker
Answer:	The manufacturer likely is the best source of info. That said, aero kroil is a Kroil variant intended for the aircraft industry, so I expect that it is tweaked to work with aluminum as well as steel. Sili Kroil is much the same, but will leave a slight silicon lubricant film in the joint, perhaps useful in locks, closely fitted gun components and such. With a door hinge, I might just use the basic Kroil, and after things have loosened up, use a couple of drops of 10-30 motor oil. I just suspect that the heaver oil film will be more useful over time in the hinge. Your mileage may vary.

Product description

Loosen frozen metal parts with Kroil Penetrant. When it comes to freeing corroded items in tough spaces, nothing rivals powerful, industry-proven Kroil penetrating oil. Used and trusted by professionals and experienced DIYers alike since 1939, 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 into spaces as small as 1 millionth of an inch. Corrosion meets its match, as Kroil dissolves and prevents rust, cleans and lubricates, and displaces moisture. This product can expose you to chemicals including beta-myrcene, which is known to the State of California to cause cancer. For more information, go to www.P65Warnings.ca.gov

• Attacks corrosion to free bolts, fasteners and other mechanical components
• Removes rust and carbon deposits without attacking metal
• Penetrates faster and deeper than similar products
• Use on any corroded threads or tight parts
• Makes the toughest maintenance jobs easier, faster, safer, and simpler to execute