This is definitely one of the best KZfaq videos I've ever seen. It is not just edited at a good pace, one you can follow and understand, no annoying background music, just enough technical information to show up that the speaker knows what he says, and of course good realistic and credible demonstrations. I think this is a model to follow. Thanks a lot, Geoffrey Crocker, you earned a follower in Peru.

love how you show the elemental reactions. I'll take your word it is done accurately.

Very informative and you have a nice presentation. I can use this in my science class. Thank you for this video clip.

Rust in peace at the end, nice touch!!! Great video, truly quality content

Love it! You brought it to the next level man! So interesting to watch, all the chemistry and stuff. Very useful video, well done!!!

Thorough and intelligently demonstrated. The chemical reactions and the use of a pH scale for reference are big pluses. Great video!

I've watched and read a lot of information of all the methods you presented here. I'd say your presentation is the most complete and comprehensive for the home gamer perspective. Big thumbs up for taking the time and sharing your findings with us.

Great video! So much value! I would have never thought vinegar was so weak, I've used it in the past with good result but as you said I left stuff in there for a long time :') Thanks man!

I admire the choice of music from ALL of your videos Mr. Croker

I love the way you visually represent the chemical aspect of this information.

Your very methodical and clearly communicated approach makes me suspect that you are very talented teacher. You have certainly taught me a few things. Many thanks.

That was the most coherent demonstration and explanation of this topic that I've seen - and pitched at just the right level for the hobbyist. This and the one on plating that I watched just before. You've given me the confidence to start trying this stuff. Well done - you are a born teacher.

Finally a comprehensive video from someone know knows what he's talking about. Great help, thanks.

This is a one hundred percent better explanation than most. This is a true explanation of how you can go about things. I certainly appreciate it.

Finally, someone who adequately explains the chemistry behind the various methods. Thank you!

Not only does this channel fulfill my land rover restoration needs, it taught me how to restore and take care of my tools Thanks mate

This is a complete overview of rust removal methods, and very well done at that. Bravo! With regard to electrolysis, the use of a carbon anode instead of a steel anode will eliminate rust scum from floating on top of the solution in the electrolysis container. See the Shopdog Sam videos on this subject on his KZfaq channel. Once he started using carbon anodes, he never had to change his solution because of floating scum. These carbon rods are available from welding supply houses. For quicker action with vinegar, use a 30% or greater concentration, but wear gloves and work outdoors - the fumes are very strong.

excellent video, edition graphics and sound, a piece of work and time taken. Really nice job.

Thanks so very much for this. Im resoring a 100+ year old bike and this video has been exactly what I have been looking for. Much appreciated.

Probably the best blend of chemistry and practical view of the rust removal issue on KZfaq. Ill go for 12v 5A on a 25Lt plastic container, with good ventilation...

I've been looking for this video for the last year. I've been getting my 1987 Suzuki samurai running and slowly restoring in the garage. Its got some surface rust on most parts and I have been looking for the right avenue to remove the rust. THANK YOU SO MUCH FOR MAKING THIS VIDEO! Greetings from Los Angeles

Most informative video on KZfaq I have watch in a long time. Precise & clearly presented. Excellent graphics. Thank you, thank you, thank you!

As always, a cracking good video. Many thanks for presenting an evidence based review of the various options we builders have, and delivering it all with just a gleeful touch of humour.

I know it's almost 4 years later but... awesome! Great video Geoffrey. Thanks for putting this together.

Geoffrey that was the best and most understandable test and description of how each of these methods work, all I need now is a massive plastic tank and quite a few phone chargers so I can immerse my Mini shell into!! Thank you for taking the time to make this excellent video.....

Great info. So glad you mentioned the fact, that it doesn't have to be washing soda and that salt will work just as well, seeing as, you're only increasing the conductivity in the water.

Geoffrey, A big thank for posting this video it's excellent! I've got a car restoration project I'm doing and the electrolysis method you show works perfect! Thank you very much for taking the time to educate others.

Completely brilliant video. Straight to the point and super informative without digressing in details.

I have been searching for days to understand these technical details and I found them all in your video. Thats very generous and good of you, thanks from OZ.

Top video! I wish you were my science teacher in school - I remember these diagrams but never did any electrolysis!

This is exactly what I've been looking for! So helpful, thank you!!!

Great vid... beautiful work with great explanations. Keep them coming Geoffrey

Awesome video, pertinent, clearly enounciated, to the point, with nice behind the scene science explanations and great points on safety and real world affects to metal. Subbed.

Really good tutorial - Thanks Geoffrey!

It was so clearly explained that I thought I'd give electrolysis a go. First rusty bolt is fizzing away as I type. Really enjoyed watching your vids during lockdown in the UK. Thanks for helping me pass the time and learn something new.

I am glad you entered in your last little part with the grinder. Always the best option.

You did it! This is *the* best video I've seen on rust removal. Thank you!

Geoffrey, absolutely brilliant video, both content and presentation! You've covered all bases and given me an easy way to set up a simple electrolysis system. I use that particular tannic acid product all the time for outdoor touch-ups as the coating acts as a primer (or final coat if I'm lazy). Love the dry Kiwi humour!

Fantastic, finally some actual information (and very useful information at that) instead of high-res, time-lapse beauty shots. Thank You! Now, please please please do a video explaining the best way to treat a deck. That information is of little use to me, but it would make my day to hear you talk for 20 minutes about all the best ways you've learned to take care of your deck (preferably with copious "accidental" innuendos, delivered totally dead-pan)!

Super useful video, such a pleasure to have all this info in one place & great that you had the fortitude to see it through. I have used most of the methods & agree with you that the wire brush is the best, so immediate & so none disrupting of the work process. If I am over painting I tend to use wire brush then rust convertor, accelerated with hair dryer & then prime, hair dry, top coat. Somehow the wait times for the other methods cause too much of a loss of momentum. Thank you for sharing!

excellent video. best I've seen on the subject. I'll be going the citric acid route as I don't want anything aggressive to clean up my 40 year old Snap-On old feeler gauges

beautiful video, well spoken and thought out. best video i've found on this topic

I appreciate your explanation of the usefulness of each process. I've used them all except Evapo-Rust but I didn't know the ideal scenarios for their uses. Practicality means a lot and I learned that even Phosphoric Acid has its place -- for a pre-plating wash. This is brilliant. I am undertaking a motorcycle restoration and the fuel tank is slightly rusty, inside. I will probably start with Citric Acid based on this video and up my rust removal game. Thank you.

Excellent overview Geoffrey, one of the best on this subject, thanks for this !

Perfect survey! I'm going to set up my own electrolysis station. Thanks for the info Geoffrey!

Finally, someone who knows what he’s talking about. Thank you, that was really informative. I watched the video several times.

That's called a scientific approach: covering all the why's & wherefores. Excellent!

Hi Geoffrey, you are the first person I have heard pronounce water correctly. Thanks ;-)

Bruddah you nailed um. Straight to the point, just the info we needed. Mahalo for making this.

The best video on rust removal, period.

Worth bookmarking. Practical, helpful, well done.

LOVE that outro, wasn't expecting it at all. Subbed and liked. Good vid, thanks.

wow you made a very good research on all the item you propose here... good work!!!!

This is an excellent tutorial on rust removal. Thanks for making and sharing this video.

Excellent description of all the alternatives. Thanks for this vid!

I loved your video as I have used mostly white vinegar with salt and have had acceptable results but I really loved the ending where you threw down the real tool for rust removal of large items as I also love my angle grinder and to me it's the most versatile tool in my shop.

Excellent descriptions. All of your plating videos are excellent. Thanks

I very much appreciate this, I am looking to do some work on tools at home, and this will help me with a direction.

Excellent tutorial. Really well explained. My preferred methods are Hydrochorlic and Evaporust. I heat my Evaporust in a little boiler and it works brilliantly. As you say its not cheap but you can use it over simply by filtering . It does leave a black film though when it ages and you have to scrub it off and protect against flash rust if youre not painting straight away . Tool steel with high carbon will also stain black.

Great video! I really appreciate your explanations and efforts.

The lemon juice trick saved one of my stained glass windows that I'd had to leave sitting for several months! The flux wasn't getting the copper foil clean and every thing online said vinegar but that wasn't making any kind of difference. I tried lemon juice and was finally able to clean up the copper so I could solder it. Thank you!

Thank you for your effort in explaining the array of solutions quite deeply.

Spot on mate,you would make a good TV narrator as you make it sound so easy..thanks.

Thank you Geoffrey for your excellent videos and restorations, keep it up! Greetings from Austria

Very good explanation, explains the chemical reactions concisely and the results.

Bravo! A lot of great value in this tutorial. You wouldn't believe how many people do these and don't explain what they are using. The pace was easy enough to understand the information being conveyed. I own a cleaning company and use science and innovation to perform our duties. These videos like this are very good in explaining the "WHY". Awesome job keep them coming and I already hit the subscribe button.

Great stuff. Been using some of these methods for years but the explanation is just amazing. Like a boss for sure.

Jeez that was ace. You sure know how to put a video together Geoffrey.

Excellent demonstration. One of the better ones I've see if not the best.

How, can someone dislike such an interesting and well done video? Like your Job! Thanks Geoffrey - Tom from germany

You really did a great work by explaining every method in detail. Thanks man

Excellent comparison video. I have some rusted brake discs to clean up, so I'll probably go with phos.acid at 40%, which worked well on rusty scaffold fittings. It's good to see you used a proper electrolysis pencil, too. They cost more than regular flat pencils, but they last a long time.

Thanks Geoffrey, nice effort all around and will serve me well as a primer on the subject as corrosion is part of life on boats and Im always working on mine. Slip in abit on passivation and this would be the hand out on all the boat bulletin boards! Cheers and many thanks for your work! CmCod

Well done Kiwi, very educational and easily understood through your presentation style and chemistry. Appreciate you taking the time to help others. Thanks

This is great... would love to hear more about safe and responsible disposal of the electrolytes / used chemicals. Excellent stuff thanks.

Informative video. Enjoyed. Saw what you did there with the outro tune! Couldn't help but blow some air through my nostrils.

Love your work Geoff, I have only used vinegar in the past but i will try one of the other methods next time to see

Very good video with great information. There was just enough chemistry to explain what was occurring during the rust removal, or metal in some cases, I have been looking for this type of information for several months. I have completed several projects involving large rusty cast iron parts. I used molasses because I heard it did not damage the base material, but was very effective in removing rust. I did not want to use harsh caustic acid or damage these antiques with sand, water pressure, or mechanical methods. My friends suggested I just sand blast the parts. After they saw the results of the projects they thought differently. I also found out that this method loosens frozen threads and cleans areas grinder wheels or brushes can't reach. I believe you are correct about the oxilic acid in the molasses being slow and not as effective as other solutions, but given the length the part is soaked gives time for secondary chemical reactions to occur. It has been observed and noted, but to my knowledge the byproduct of that chemical reaction has not been accounted for. That secondary chemical reaction is the fermentation of the sugar as part of the molasses to ethanol. I am no chemist, but see if this makes sense. I didn't take time to balance the equations. C6H12O6 > C2H5OH > CH3CO2

Highly entertaining, informative. Well thought out. Well done.

i found a great source of income for myself thanks to this video, restoration and resale of metal tools.

Great great great video im french and it s easy to understand. The animation is marvelous

GREAT video! This is exactly the comparison I've been looking for! Oxalic acid is often purchased under the brand "Bar Keeper's Friend" in the United States. I love the scientific summary about how they all work differently too! Thank you!

Nice work. Both clarity and conciseness.(SP?) THANX

Amazingly competent/complete. Thks

Great video, I try to always use electrolysis as you can recover the item. I had a badly rusted ride on mower deck that I made a custom tank to run the electrolysis in and after a couple of days I could weld the brackets back in place and returned the mower to it’s useful state

Deservedly well received video. Thank you for sharing your knowledge so succinctly.

Thank you for the video, it helped a lot. I used HOT citric acid yesterday and it worked great.

Awesome information, so well explained, if only all teaching was done like this. - Had to subscribe..!

Excellent and thorough explanation...and why I nearly failed chemistry. I noticed the Boeing T-5 in the background of your final shot. Viewers should know this is an excellent rust preventer and needed after removing the rust by most methods shown. Also I noticed you putting your finger in the citric acid. I once prep'd a garage floor for epoxy coating with citric acid... unwisely wearing flip-flops. It messed up my toenails pretty badly. Live and learn, or watch KZfaq. Thanks again.

Awesome video, best explanation on rust removal I have ever seen! Thanks!

You are a godsent Geoffrey for breaking down each different rust remover and its mechanism. I found this video extremely useful to help me understand which agent to use for rust removal and also the reason that follows. Thanks again!

Very helpful and informative. Thanks!

this is gold information, you just help us save time, thank's mate, greeting from Bali

I've found dipping parts in a 20% Phosphoric acid solution and leaving for up to 24 hours dependent on severity of rusting to be the most effective method for 100% removal. As you mentioned it will corrode and etch the steel, but after a full 24 hours I've found the effect to be truly negligible and the etched surface left is also excellent for painting.

Great tutorial. Learnt a lot.😉👍🏼

👍 Thank you again (I've watched this in the past) I am so glad I watched again ... your presentation & clarity is excellent ! I love the chemical explanations, they are so clear. Much appreciated 🙃 Ted from Downunder across the ditch 😉

Awsesome video ! thanks and congratulations on your explanations

Thank you man . great video. Helped me save lots of time of search and work

A very good simple informative video, Thanks