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Home / Covering Supplies / Corrosion Treatment /ACF-50 Anti-Corrosion Block Compound
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ACF-50 Anti-Corrosion Block Compound

52 Reviews 11 Answered Questions
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13 oz Aerosol 32 oz 4 Liter 20 Liter Pail 114 Liter Drum 205 Liter Drum
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Overview

ACF-50 is a state-of-the-art compound for controlling corrosion on aircraft electrical and avionics systems and airframes. ACF-50 is designed for owners of strut equipped Piper aircraft to comply with new Piper bulletin 5280C requiring lift strut inspection.

ACF-50 kills the corrosion process with just one application and will last for 24 months. Microswitches, cannon plugs, and relays will remain corrosion free. Plus, ACF-50 will easily free seized nuts, screws and bolts. ACF-50 is qualified under Mil-C-81309E, and manufactured under ISO 9000 Certified Processes. ACF-50 holds written OEM approvals from: Gulfstream, Bombardier, ATR Regional Transport, Douglas/Boeing Helicopter, Bell/Textron, Robinson, Enstrom, Sikorsky, MD Helicopters, Schweitzer, Hiller, British Aerospace, Concorde Battery, Raytheon, Piper, Cessna, Pilatus, Beech, Van's, Extra, Air Tractor, Lake, Rolls-Royce, Britten-Norman, Learjet, McDonnell Douglas, and Canadair. Try ACF-50. You will truly be amazed at the results!

Product Brochure

ACF-50 Brochure

Technical Specifications

  • 09-44350 13oz Tech Specs
  • 09-00364 32oz Tech Specs
  • 09-44345 4L Tech Specs
  • 09-00437 20L Tech Specs
  • 09-04077 / 09-04078 Drum Tech Specs

Product Lab Performance

Lab Performance

Videos

//www.youtube.com/embed/C447EUs9dKA?rel=0
//www.youtube.com/embed/30paBTt8Oko?rel=0
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Reviews

Submit a Review

Great corrosion prohibited. Smells better than WD40, LPS.

John Verified Purchase

ACF-50 ANTI CORROSION FORMULA 13 OZ AEROSOL

May 2, 2023

Great product can Highly recommend using it .

Robert B Verified Purchase

ACF-50 ANTI CORROSION FORMULA 32 OZ

April 8, 2023

Good stuff

Jeff T Verified Purchase

ACF-50 ANTI CORROSION FORMULA 13 OZ AEROSOL

January 18, 2023

Alvin S Verified Purchase

ACF-50 ANTI CORROSION FORMULA 32 OZ

November 25, 2022

This Product is great and very well priced. After Vapor Blasting a film of ACF and you are good , great protection.

Gary D Verified Purchase

ACF-50 ANTI CORROSION FORMULA 13 OZ AEROSOL

November 24, 2022

Find corrosion, clean it up, spray this on, no more problems. ACF is a great product, and there’s a decent amount in the can. Everyone should have some in their hangar

Aidan A Verified Purchase

ACF-50 ANTI CORROSION FORMULA 13 OZ AEROSOL

October 7, 2022

Magaero L Verified Purchase

ACF-50 ANTI CORROSION FORMULA 4 LITER

August 30, 2022

Fast delivery and cheapest for this product.

Robert L Verified Purchase

ACF-50 ANTI CORROSION FORMULA 32 OZ

July 5, 2022

Great product, will wick into joints well. Low propellant level benefits from frequent shaking, or even leaving in the sun for a few minutes to heat it up.

Kevin O Verified Purchase

ACF-50 ANTI CORROSION FORMULA 13 OZ AEROSOL

June 25, 2022

They no longer offer the product in 3 oz. bottles this was the smallest quantity of liquid product available.

David B Verified Purchase

ACF-50 ANTI CORROSION FORMULA 32 OZ

June 24, 2022

Only lube I use

Kgmo I Verified Purchase

ACF-50 ANTI CORROSION FORMULA 13 OZ AEROSOL

June 8, 2022

Will try to use it today as the aerosol can clogged and is not usable.

Michael Verified Purchase

ACF-50 ANTI CORROSION FORMULA 32 OZ

May 24, 2022

Good stuff.

Dewitt B Verified Purchase

ACF-50 ANTI CORROSION FORMULA 13 OZ AEROSOL

March 22, 2022

Recommend from other pilots. I have noticed a difference but so light that I need to give more time before I can make more positive comment. Got my fingers crossed.

Rob K Verified Purchase

ACF-50 ANTI CORROSION FORMULA 32 OZ

March 8, 2022

The best of the best.

Joe M Verified Purchase

ACF-50 ANTI CORROSION FORMULA 32 OZ

March 6, 2022

ACF is the best, use it on almost everything on my PA-30

George K Verified Purchase

ACF-50 ANTI CORROSION FORMULA 13 OZ AEROSOL

March 1, 2022

great for corrosion protection and also a great lubricant.

Frank O Verified Purchase

ACF-50 ANTI CORROSION FORMULA 13 OZ AEROSOL

February 23, 2022

Good product for corrosion protection

Aeropro Verified Purchase

ACF-50 ANTI CORROSION FORMULA 13 OZ AEROSOL

February 22, 2022

ACF-50 is a very good product. A little goes a long way. Got a can for my brother because every shop should be using it.

Phill S Verified Purchase

ACF-50 ANTI CORROSION FORMULA 13 OZ AEROSOL

February 17, 2022

Great product!

Charles G Verified Purchase

ACF-50 ANTI CORROSION FORMULA 32 OZ

February 10, 2022

The aerosol versions lose pressure before fluid is used up. Recommend hand spray bottle or alternate.

Pitch A Verified Purchase

ACF-50 ANTI CORROSION FORMULA 32 OZ

November 11, 2021

Sling R Verified Purchase

ACF-50 ANTI CORROSION FORMULA 4 LITER

October 8, 2021

Applied a good amount using air throughout my airframe for the benefit of anti-corrosion.

Timothy R Verified Purchase

ACF-50 ANTI CORROSION FORMULA 32 OZ

September 25, 2021

Orville W Verified Purchase

ACF-50 ANTI CORROSION FORMULA 4 LITER

August 20, 2021

Great service. Product sent and received promptly

Brian T Verified Purchase

ACF-50 ANTI CORROSION FORMULA 32 OZ

July 23, 2021

Great service. Product sent and received promptly

Brian T Verified Purchase

ACF-50 ANTI CORROSION FORMULA 32 OZ

July 23, 2021

Must-have compound to keep around the hangar when you fly older airplanes. Amazing stuff.

Stephen M
March 20, 2021

Works great. I use it on my firewall. I have a liquid cooled engine. The radiator overflow bottle tends to splash a little during start up and shut down. This works great at keeping my firewall corrosion free

Rj
December 23, 2020

Great product !

Robert A
November 3, 2020

I use this on my firewall

Rj
September 1, 2020

!!!! EXCELLENT !!!

Heli-x I
June 13, 2020

best product anyone can ever use to prevent corrosion. you can literally spray it anywhere you like.

Jose
May 4, 2020

Excellent product and service

Joseph E
February 23, 2020

Timely delivery, well packaged.

Knute
February 7, 2020

Best purpose built product. The mechanics use it in bulk as a fogger in the wings and I use it occasionally in the nose and tail areas.

Alan
November 30, 2019

Had a shop apply this behind my fuel tanks all along the spar to my Cherokee 160 after inspecting the tanks. Not part of the Service Bulletin but a good way to prevent future problems. Its good stuff, Ive used it on a few spots of my plane before and it changes to a dark colour immediately and the loose stuff wipes right off. Just be really careful about broad applications with it if you have an old bird like mine... This stuff has been known to cause smoking rivets real bad and can stop one problem while creating another. Use it sparingly if you can and only where needed to avoid this.

Chris
October 17, 2019

Needed some extra protection on aluminium and metal parts. I read ACF-50 ANTI CORROSION FORMULA is mil spec and controls corrosion. Long story short, if its good enough for jets, its good enough for my Porsche. Great stuff.

Mike
September 3, 2019

Protect expensive metal/Parts. Easy to use. I use 13 oz cans but other quantities for other users.

C M
July 20, 2018

Beat corrosion preventer ever

Joseph E
January 17, 2018

Larry H
January 1, 2018

I bought the Aerosol can, its the best anti corrosion for planes. Another A&P asked me who did it because it was so well done, proving you don't need the fancy spray jet. This tackles existing corrosion, whereas LPS3 is a wax based substance which SEALS IN, so you need to scrape any corrosion if using the LPS whereas with the ACF-50 you can also apply on top of light corrosion.

Martin A
March 1, 2015

The spay bottle works great for me! I wish I would have known about this stuff 20 years ago!

Jeff
March 2, 2013

Would have given it a 5 star rating if not for the spay bottle that came with it . It needs a way install an extended straw like tube so you can spray the stuff through small openings

Joseph Verified Purchase

ACF-50 ANTI CORROSION FORMULA 32 OZ

June 23, 2023

I have used both the can and bottle form of ACF 50. it gets into all areas, seams, gaps. I would not use it on fresh paint or in an area that I was going to paint soon.

Paul
August 14, 2020

Great product but the bottles leaked in transit. Lost about 20% due to leakage.

Bob
January 27, 2020

Package arrive safely. However, noticed that some of the liquid had spilled out of the bottle that the packaging paper used inside the box is wet. Please improvise on this and you are ok. Other than this, cant wait to use the product later...

Noor A
March 5, 2019

Great product, rattle can has mediocre pressure. With spray tube on, it's good for distance - nozzle by itself is better for a fine mist. Could benefit from more pressure in can. But in bulk with a proper fogger, this stuff will be unbeatable.

Kevin
April 28, 2013

ACF-50 has been a staple in my hangar/airplane/garage/boat/cars/window frames for years! Ive used it on practically everything - my only complaint is the aerosol can loses its charge and I have to throw away 1/3 to 1/2 a can every time?! Im thinking about buying the sprayer - its just not convenient

Sean O
November 6, 2020

Not enough propellant. the can still had what felt like a third of the contents when it ran out of gas. A good enough spray to begin with but it didnt last. I cannot speak for the effectivity of its anti corrosion properties in the wing where I just sprayed it and I did get a wings worth (barely) out of each can, but I am disappointed in that it went flat so soon.

Richard S
July 2, 2020

Great product however the shipping charges were way to high almost the price of the product

Sandra T Verified Purchase

ACF-50 ANTI CORROSION FORMULA 32 OZ

November 3, 2022

I ordered this to use on my current annual. It worked great for about 5 minutes then the nozzle clogged and it wont spray.

Michael Verified Purchase

ACF-50 ANTI CORROSION FORMULA 13 OZ AEROSOL

May 24, 2022

Bought two 13 ounce aerosol cans. Both ran out of propellant after about 4 ounces

Bryan J
April 25, 2020
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Q&A

Submit

Please note, Aircraft Spruce's personnel are not certified aircraft mechanics and can only provide general support and ideas, which should not be relied upon or implemented in lieu of consulting an A&P or other qualified technician. Aircraft Spruce assumes no responsibility or liability for any issue or problem which may arise from any repair, modification or other work done from this knowledge base. Any product eligibility information provided here is based on general application guides and we recommend always referring to your specific aircraft parts manual, the parts manufacturer or consulting with a qualified mechanic.

Q: What is the shelf life on ACF 50? Thank you, Ed

According to manufacturing certs, this product is best used within 2 years of the date of manufacture.

Q: How does ACF-50 do on chrome? Is there any discoloration? Is it okay on chrome exhaust?

This product works great on chrome and should not cause any discoloration. Should be fine on a chrome exhaust. ACF recommends using with a micro-fiber cloth.

Q: Can this product be used on the underside and the wheel wells of an automobile? Corrosion is being caused by exposure to sea air moisture. Corrosion is predominantly on the drive shaft and frame.

Yes, This is an anti-corrosion material which can be used on aviation or automotive applications.

Q: If the surface already has corrosion, will the application of this material visibly remove the corrosion? How many aerosol spray cans would be needed to cover the underside of a full size pick-up truck? Can any paint sprayer be used for application?

Per the manufacturer: If the surface has corrosion then yes, it will visibly remove it, but if the surface has rust then no. It will not remove rust. The customer would have to clean the areas that have rust and then apply ACF-50 to prevent any more rust from appearing. Tough to say exactly how much you would need. I would think at least close to a 4 liter jug, just guessing of course. Yes, you can use a paint sprayer and that would require more product.

Q: What applicator can I use for this ACF-50 Anti-Corrosion Block Compound?

ACF-50 has applicators to use with their products. We have added them as "Accessories" to this webpage.

Q: Is ACF-50 FAA approved to be used inside light aircraft fuel tanks to provide a corrosion inhibiting coating?

This is not recomended to be used inside light aircraft fuel tanks. This is not an area where ACF-50 was designed for as it would mix with the fuel and can cause other issues. It would not have anything to do with an FAA approval, it is just something that is not recommended by the manufacturer.

Q: Does ACF-50 dry or does it remain moist as an oily film?

The ACF-50 is active so there will always be a bit of film.

Q: Is ACF-50 safe to use on a bonded aircraft structure such as a grumman yankee? Will it attack or penetrate the bond material?

ACF-50 will not negatively effect bonded structures in any way...and is perfectly safe for "all" composite aircraft structures....including the Grumman Yankee and Tiger...

Q: Can ACF50 be shipped by air? is it considered hazmat?

Only the aerosol can is considered HazMat for shipping. The non-aerosol can be shipped air without additional fees.

Q: Can the ACF-50 corrosion block be used on the interior of an aircraft? I have light corrosion on the floorboard beneath the copilot and pilots seats.

Yes, it can be used inside the aircraft.

Q: Can I paint over an application of ACF 50?

Per the manufacturer, no you cannot paint over it.

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