I'm in a fiberglass monohull...37 ft Ketch....after watching the Finnish people in their Aluminum vessel I now want one....thanks for explaining about Aluminum.....sail safe
Seeing some of the corrosion damage and all the other issues that Chuffed had I was very skeptical that you would ever be able to do all the renovation work that she needed ! Now that I know how much work has been done and the time you have put into it I know I was wrong, you are one of the most determined and tenacious people I have ever heard of, you are an inspiration to us all !
for people who want some extra terminology; the anode (negative electrode in a galvanic spontaneous electrolysis redox reaction) gives electrons to the postive electrode and therefor oxidizes.
Very nicely done! That was one of the best explanations i have ever heard. I am glad you mentioned stray current in marinas. Electrocution due to stray current at marinas is the biggest reason I don't ever swim at a marina (even more dangerous in bodies of fresh water). So glad you are putting good zincs on chuffed. She will thank you!
Marina close to ours, mother and daughter were electrocuted from their own aluminum boat because father wired the ground improperly...water around boat was charged when they jumped into water. Almost all marinas have stray electrons in the water. Never swim in marina water.
haha most people just talk about the difference in the nobility of metals, of course the good doctor talks about the difference in potential electrochemical voltage, which is the correct way to explain galvanic corrosion. Be sure to get a galvanic isolator for your shore power connection - it will stop stray currents from other boats from eating away at your boat/anodes when it is on shore power.
Always loved and adored it when the scientist inside shoe comes out... Thank you professor I truly appreciate it when you are able to actually explain things to us individuals that are missing a couple of molecules it's always during Lee one of your fans forever
A "must" on an aluminum (or steel) boat is an isolation transformer. Not a galvanic isolator, that helps too, but an isolation transformer. Only this a 100% protection against stray currents in a marina, from either faulty marina installations or faulty installations on other boats.
@@VetTails Yes, you are right. But why do you have no shore power? It is the most convenient and quickest way of charging your batteries, when you are in a marina. If the reason for not having shore power is the threat of galvanic corrosion from various marina sources or other boats, then an isolation transformer is the answer. It isolates your hull, galvanically, from any and all such threats.
Doctor you have got to be the most noble person I know of on the internet and believe me I watch a lot of sailing channels and you are the queen of nobility
Very interesting, thanks. It’s interesting that you’ve painted the bottom of the hull. I wonder if you considered just leaving it bare and increasing the anode mass to compensate. A small chip in that coating and you could get rapid corrosion at that spot due to high proportion of the coated surface (which will become the cathodic site) compared to the chip (which will become the anoxic site).
In many ways it is still somewhat of a Dark Art. No matter what you do, there will always be issues. People can be dogmatic about the right thing to do, but reality and theory don't always jibe. You have taken a thorough approach and done all the right things, great job Sheddy. You always do what's best for Chuffed.
Yes so very true Marty - its like reading up about whether to ground an aluminium boats electrical system in anyway... it seems theories go both ways, personally I will make sure electrcity never sees this hull again (as best I can!)
Brief, simple and extremely informative. Always understood the concept and problem of electrolysis in construction and boating. Was great to learn a bit more about the differing natural degree of positive or negative charge in various metals. Fun to know. Thanks. Chuff is your biggest patient. Good luck-Gday.
I have been looking for heavy gauge aluminum boats here in Hawaii and now I suspect I know why there are very few of them. Proper building based on the material preservation when working with finite elements and their electrical properties. It would be a solid and minimal effort to maintain if done correctly. Very insightful info. Mahalo for your time and insight.
Believe their are electronic monitors and preservers of aluminum available in addition to the process you are using in this video as well....aluminum boats hold their value well if properly protected. I have had two aluminum boats with issues but kept more than required and fresh anodes in place. I chose not to remove the oxide or paint above the waterline kept an electron barrier between dissimilar metals on the boat as well.
I redid a little aluminum row boat, and have been around boats for 30 years. Excellent job there, you taught me more than I knew. The pictures were good too nice work. Now I know why the brass oarlocks ruined the gunwales.
VTSC, one aspect of the tank bottoms corrosion is water bottoms (condensate or fuel impurities) can become acidic or shift their neutral ph to the acid side due to DE-aeration when left under fuel in a bare aluminum tank. The aluminum will 'remove'/strip or attract the oxygen to the aluminum oxide and the ph shift happens. After the water bottoms become acidic enough they will start crevice cell corrosion sites as you show in the video. For this reason water bottoms sumps coupled with regular pump-outs are part of well designed, built & maintained marine tanks.
Nice job chica!!! Oh man, so much work to do the whole bottom again 🙈 but little Chuffed will be so thankful for this and hopefully no more pitting from now on 🤞🏼🤞🏼🤞🏼big hug do you 😘
To be honest, my brain still cannot comprehend many concepts discussed here, but I thank you enormously for making it better... and btw, yay surfing fishing and sailing. May it all come to you soon. (Yay all the dogs in the world who need love and care)
I learned about electrolytic action back in college in the early 80's not bringing steel in contact with aluminium,your explanation brought that all back.Very well explained thanks.
Having spent 30 years trying to eliminate electrolysis on my steel yacht I know it very difficult to avoid completely. Fortunately the damage was small enough to keep on top of. Some of the things I found to watch for were anodes with to high a lead content to work properly, stainless to mild steel contact, an alloy heat exchanger that has a direct contact to the sea via the raw water system.
I tell folks to repaint inside and outside on a regular schedule...steel boats will rust more inside of boat in unseen and hard to reach places quicker than outside the boat.
One of the most interesting tests , at least to nerdy me as I like electricity, was the one with a silver ingot, or at a minimum a well plated silver spoon, and a meter. Something like throwing the spoon into the salt water and measuring the voltage , with the black meter lead hooked to the boat, and the red meter lead on a wire connected to the silver. You get a voltage reading that indicates how well your "Zincs" are working. Apparently there is a sweet spot voltage which means you have the optimum amount of zincs for your vessel, its possible to have too much or too little. Its a topic which is hard to find details, especially for the more rare aluminum vessels, , kind of a scientific pursuit for a group of us . My cruisers help playlist has about 10 videos on galvanic corrosion topics. Yes, the systems you need when connected to shore power get a little complex and expensive. That said, there was a site called JetDock where they mentioned 1.3 volts as that special voltage and not going over that. Would need to ask them more about that. Also, with the Zinc sure to disappear, its essential that the hardware attaching them doesn't leak after the Zincs have disappeared.
Yes would like to try that, Will and I went around to each wire and the hull measuring any conductiveness to find stray leaks etc which was interesting
Wow, I was just searching some info regarding aluminium.. came out over your video and I enjoyed it so much! Very nice info about corrosion and video itself is such nicely made. You got yourself a subscriber right away :)
This video was a real eye opener for me! I can not be more gratefull for you doing it and filming all the examples in situ! I've lived in ignorance as I tough that aluminium boats were nearly impervious to corrosion, and one need to worry only about stray currents from inside the boat and nothing more. How naive was to believe all those marketing things and "parroting" from other ppl that don't know better themselfs.
This is good, but like you said there's a lot of bad info and I think a lot of that comes from the telephone effect. The further in the chain of correspondence the listener is from someone who actually studies chemistry, the more chance the info is dumbed down at best and wrong at worst.
Well done! Superb explanation of all that info about corrosion and its various types. I only stumbled on your channel today, I will stay to learn more.
I stumbled upon this video while trying to figure out if I could use my boats aluminum hull as the grounding path for its electrical system. Thank you for answering it! If im interpreting this right, I should not do that.
@Will Swift Either an isolating transformer or a set of bridging capacitors. The idea is to isolate the vessel from the marina's power earthing system, thereby preventing your boat becoming the best earth for stray current and phase mis-match the entire marina power system has--with alarming rates of corrosion as a result. On my vessel, which was not aluminium--I used an isolating transformer. It was heavy. There are more modern devices available.
When the connecting screws on the roof of the parking garage all rusted out when we had an interest in a condo in Mexico. No one believed me that it was because there were two different metals in contact. A few looked it up and were astounded it was indeed true. The builder should ever have used two different metals which was in reality three metals. The steel roof structure, the metal roofing and the subsequent incorrect metal screws. I think you have done such an amazing job, from scared, frustrated and in tears to in control and fully aware of the workings of your boat.
As usual, Sheddy, the episode was tops !!! When you pulled the stainless rail away from the aluminum, I thought for sure you were going to mention how to place a non-metal disc in-between metal to metal contact to reduce galvanic corrosion. Totally agree (on any kind of boat) anodes are our friend. ✨💕✨✌️✨⛵️⚓️🏝👣👙✨
Great video. I would like to add there is a good product to avoid galvanic corrosion where contacts between dissimilar metals can't be avoided (example. Stainless steel bolts into aluminium). It's called DURALAC, a yellow paste that can be applied. Check it out :)
Great science lesson! I agree the internet is wonderful ....but have to seek a reputable source. So glad that you look healthy & happy 🙂👌 All's well in New York. Our infection & hospitalization rates are very low. Schools are opening in a couple weeks. Some with modified classroom venues ...most will be hybrid or online. As good as it can be in a pandemic. Stay safe and well 😷✌️🇺🇸
So glad to hear things are going well, and 'the new normal' is coming gently. I hope we use this time to restructure some of the ways things were that maybe were not working for everybody equally! Thanks Christine stay chuffed and stay well too!
I was just out on a friends brand new dufour 390 when i said she should check her anodes when ever she gets a chance (since she charters her boat) I dived on the boat and saw her saildrive anode had a missing screw and was hanging off the saildrive, she didnt even know there was an anode there. Could have been an expensive mistake. I got the impression you didnt know any of this before you saw all of this damage and have learned a great deal since then. The last 2 bits of advice, dont drop any screws or metal in your boat, be hyper vigilant about it, if you drop a sss screw into the bilge you will end up with a hole in your boat, next any time you need to screw a sss screw into your alum, use duralac on the screw - it will isolate the 2 metals. gl hf.
in a sailing boat, the simple fact of eletrostatic charges bild up in the mast or sails can generate enogth differential to promote galvanic or eletroctrolitic corosion ^^ but nice complete explenation BTW, nice video
Magnesium alloy is really good in fresh water, but zinc anodes will work well in salt water on an alu boat and are bit more readily available and cheaper. Zinc anodes slough more readily too so less chance of oxide build up rendering them inert.
So random I came across your channel. Im polishing an aluminium V8 chev inlet manifold and searching for tips and tricks. Im wondering now after seeing your video, if I attach an anode would it help inhibit corrosion in an engine? Given its an engine its does use high tension and low voltage, plus has water running through it for cooling. Surely that has to attribute to corrosion in the block and head. Im guessing if an anode could help an engine, someone would of already done it. Man great project and you really have a presence about you on camera. Im in Radelaide... So Go Oz content.
Once again so sorry you had to go through all that. Dated a lady with a 64 mustang 1st year. Boy did she use the charm on me 6 months later it was a good car.
I am considering building my own Aluminum Sail boat.. I know its not a great investment, but, I just think its more about the adventure. I want a boat build to my specs, my way.. A place to call home for many years.
I saw one aluminium boat a dutch man built for him and his wife... 68ft... it was soooooo beautiful and the most perfectly designed vessel for comfort/style/use that I have ever seen. Not a think went unthought, and it was in the most beautiful condition when I saw it ten years after it was built because he takes care of it - it can be a good investment (well, you might not make money but you might not lose too much haha)
Finally, someone who knows the corrosion subject and can explain it really well. Thanks.
Especially when those tech things explained by a nice and beautiful lady, amazing!
Thumbs up! After 30 years living on or just sailing around the globe that was the best simple explanation ever. Top marks
I’ve heard this explained many times, but never this clearly. Thanks!
I'm in a fiberglass monohull...37 ft Ketch....after watching the Finnish people in their Aluminum vessel I now want one....thanks for explaining about Aluminum.....sail safe
Girl talking about technical aspects.., amazing! ))
Great Video! I learned more in 8 minutes about aluminum than I ever though I could.. great job on explaining everything.
Glad it was helpful, thanks!
how and what can you do to add Anodes to the Alu boat ?
Seeing some of the corrosion damage and all the other issues that Chuffed had I was very skeptical that you would ever be able to do all the renovation work that she needed ! Now that I know how much work has been done and the time you have put into it I know I was wrong, you are one of the most determined and tenacious people I have ever heard of, you are an inspiration to us all !
Aw thanks so much Ian, yeh its been a hard slog but we are very close!
At last a clear explanation on electrolysis!
for people who want some extra terminology; the anode (negative electrode in a galvanic spontaneous electrolysis redox reaction) gives electrons to the postive electrode and therefor oxidizes.
Thank you for adding extra clarity!
Very nicely done! That was one of the best explanations i have ever heard. I am glad you mentioned stray current in marinas. Electrocution due to stray current at marinas is the biggest reason I don't ever swim at a marina (even more dangerous in bodies of fresh water). So glad you are putting good zincs on chuffed. She will thank you!
Oh yeh that is a scary thought! Thanks Pat and Mike x
Marina close to ours, mother and daughter were electrocuted from their own aluminum boat because father wired the ground improperly...water around boat was charged when they jumped into water. Almost all marinas have stray electrons in the water. Never swim in marina water.
haha most people just talk about the difference in the nobility of metals, of course the good doctor talks about the difference in potential electrochemical voltage, which is the correct way to explain galvanic corrosion. Be sure to get a galvanic isolator for your shore power connection - it will stop stray currents from other boats from eating away at your boat/anodes when it is on shore power.
Always loved and adored it when the scientist inside shoe comes out... Thank you professor I truly appreciate it when you are able to actually explain things to us individuals that are missing a couple of molecules it's always during Lee one of your fans forever
Bonding is important too!
holy crap, im 72 and still learning stuff :-)
You never stop learning! Thats a sign of a good person :)
A "must" on an aluminum (or steel) boat is an isolation transformer. Not a galvanic isolator, that helps too, but an isolation transformer. Only this a 100% protection against stray currents in a marina, from either faulty marina installations or faulty installations on other boats.
Am I right in thinking thats only for shore power? We dont have shore power so all good here ;)
@@VetTails Yes, you are right. But why do you have no shore power? It is the most convenient and quickest way of charging your batteries, when you are in a marina. If the reason for not having shore power is the threat of galvanic corrosion from various marina sources or other boats, then an isolation transformer is the answer. It isolates your hull, galvanically, from any and all such threats.
Doctor you have got to be the most noble person I know of on the internet and believe me I watch a lot of sailing channels and you are the queen of nobility
Very interesting, thanks. It’s interesting that you’ve painted the bottom of the hull. I wonder if you considered just leaving it bare and increasing the anode mass to compensate. A small chip in that coating and you could get rapid corrosion at that spot due to high proportion of the coated surface (which will become the cathodic site) compared to the chip (which will become the anoxic site).
In many ways it is still somewhat of a Dark Art. No matter what you do, there will always be issues.
People can be dogmatic about the right thing to do, but reality and theory don't always jibe.
You have taken a thorough approach and done all the right things, great job Sheddy. You always do what's best for Chuffed.
Yes so very true Marty - its like reading up about whether to ground an aluminium boats electrical system in anyway... it seems theories go both ways, personally I will make sure electrcity never sees this hull again (as best I can!)
Brief, simple and extremely informative. Always understood the concept and problem of electrolysis in construction and boating. Was great to learn a bit more about the differing natural degree of positive or negative charge in various metals. Fun to know. Thanks. Chuff is your biggest patient. Good luck-Gday.
Thanks so much I appreciate that!
Well done, that was a great explanation.
thanks!
your smile catched my heart so that I just ignored the content..
I have been looking for heavy gauge aluminum boats here in Hawaii and now I suspect I know why there are very few of them. Proper building based on the material preservation when working with finite elements and their electrical properties. It would be a solid and minimal effort to maintain if done correctly. Very insightful info. Mahalo for your time and insight.
Believe their are electronic monitors and preservers of aluminum available in addition to the process you are using in this video as well....aluminum boats hold their value well if properly protected. I have had two aluminum boats with issues but kept more than required and fresh anodes in place. I chose not to remove the oxide or paint above the waterline kept an electron barrier between dissimilar metals on the boat as well.
Excellent explanation thanks so much
You are welcome!
I redid a little aluminum row boat, and have been around boats for 30 years. Excellent job there, you taught me more than I knew. The pictures were good too nice work. Now I know why the brass oarlocks ruined the gunwales.
Oh thats awesome to hear, thank you!
Dr Sheddy and assistants heroically save another ailing patient - SV Chuffed!
haha yes! shes been the longest case ever!
VTSC, one aspect of the tank bottoms corrosion is water bottoms (condensate or fuel impurities) can become acidic or shift their neutral ph to the acid side due to DE-aeration when left under fuel in a bare aluminum tank. The aluminum will 'remove'/strip or attract the oxygen to the aluminum oxide and the ph shift happens. After the water bottoms become acidic enough they will start crevice cell corrosion sites as you show in the video. For this reason water bottoms sumps coupled with regular pump-outs are part of well designed, built & maintained marine tanks.
Nice job chica!!! Oh man, so much work to do the whole bottom again 🙈 but little Chuffed will be so thankful for this and hopefully no more pitting from now on 🤞🏼🤞🏼🤞🏼big hug do you 😘
I hope so! You know the joys of this work ;) Miss you!
Great video! Many thanks for sharing.
Thanks for watching!
Thanks, we learn more before we chose the right boat.
You are a sweetheart. Very knowledgeable. Settled a problem for us. Thank you
To be honest, my brain still cannot comprehend many concepts discussed here, but I thank you enormously for making it better... and btw, yay surfing fishing and sailing. May it all come to you soon. (Yay all the dogs in the world who need love and care)
Thanks so much, yes it’s super confusing! So excited to head up there and help out
Thank you for these informations.For me it's the first video about aluminum boat.I need more.
Yes they require some very specific care! We do some work on the tanks etc in later episodes, and also paint the boat which may help you!
..., je t'adore DOCTEUR, continue ainsi BRAVO!
Very good video with 1st hand experience and information.
I learned about electrolytic action back in college in the early 80's not bringing steel in contact with aluminium,your explanation brought that all back.Very well explained thanks.
Good explanation of galvanic corrosion
Thanks, its hard to wrap my head around!
If only you were my science teacher 😊
Haha, might have made more money that way too
Having spent 30 years trying to eliminate electrolysis on my steel yacht I know it very difficult to avoid completely. Fortunately the damage was small enough to keep on top of. Some of the things I found to watch for were anodes with to high a lead content to work properly, stainless to mild steel contact, an alloy heat exchanger that has a direct contact to the sea via the raw water system.
Yes it is a the battle of metal boat owers!
I tell folks to repaint inside and outside on a regular schedule...steel boats will rust more inside of boat in unseen and hard to reach places quicker than outside the boat.
Thanks!
thank you!
Well done, very informative video....you guys rock! Thanks, Andrew
When you do your research... go chuffed!
Great channel, good variety, good people
Thanks!
Great presentation of the decomposition potential regarding Aluminium, best I've seen. Thanks.
This video is good ad for Fiberglass boats.
Hoooo, finally a very clear explanation... thank you Dr. Sheddy :)
One of the most interesting tests , at least to nerdy me as I like electricity, was the one with a silver ingot, or at a minimum a well plated silver spoon, and a meter. Something like throwing the spoon into the salt water and measuring the voltage , with the black meter lead hooked to the boat, and the red meter lead on a wire connected to the silver. You get a voltage reading that indicates how well your "Zincs" are working. Apparently there is a sweet spot voltage which means you have the optimum amount of zincs for your vessel, its possible to have too much or too little. Its a topic which is hard to find details, especially for the more rare aluminum vessels, , kind of a scientific pursuit for a group of us . My cruisers help playlist has about 10 videos on galvanic corrosion topics. Yes, the systems you need when connected to shore power get a little complex and expensive. That said, there was a site called JetDock where they mentioned 1.3 volts as that special voltage and not going over that. Would need to ask them more about that. Also, with the Zinc sure to disappear, its essential that the hardware attaching them doesn't leak after the Zincs have disappeared.
Yes would like to try that, Will and I went around to each wire and the hull measuring any conductiveness to find stray leaks etc which was interesting
@@VetTails can you describe that process a bit more?
Thank you for your video and I will be watching to learn more things to know with the corrosion of aluminium lol me I just get cob webs lol
Really good and simple explanation
Great,
hope it floats .
Wow, I was just searching some info regarding aluminium.. came out over your video and I enjoyed it so much! Very nice info about corrosion and video itself is such nicely made. You got yourself a subscriber right away :)
Learnt a lot from this video. Thanks.
You had me at "Al yooo min e yumm."
haha the aussie accent!
Great explanation of corrosion and how it works.
Thanks 👍
Good knowldge
Your knowledge is amazing.
Thank you for the clear explanation!
I had to pause the video to comment how informative this is, thanks, great work, I'm subscribed now :)
Thanks so much! Its definitely a topic I wont begin to know everything about, but grateful I was able to learn the basics as I went owning Chuffed
This video was a real eye opener for me!
I can not be more gratefull for you doing it and filming all the examples in situ!
I've lived in ignorance as I tough that aluminium boats were nearly impervious to corrosion, and one need to worry only about stray currents from inside the boat and nothing more.
How naive was to believe all those marketing things and "parroting" from other ppl that don't know better themselfs.
This video is fantastic thank you so much
This is good, but like you said there's a lot of bad info and I think a lot of that comes from the telephone effect. The further in the chain of correspondence the listener is from someone who actually studies chemistry, the more chance the info is dumbed down at best and wrong at worst.
Thank you for a very informative vid👍🏾
Well done! Superb explanation of all that info about corrosion and its various types. I only stumbled on your channel today, I will stay to learn more.
I stumbled upon this video while trying to figure out if I could use my boats aluminum hull as the grounding path for its electrical system. Thank you for answering it! If im interpreting this right, I should not do that.
Always use an isolation device when using marina power--as well as the other things you said.
@Will Swift Either an isolating transformer or a set of bridging capacitors. The idea is to isolate the vessel from the marina's power earthing system, thereby preventing your boat becoming the best earth for stray current and phase mis-match the entire marina power system has--with alarming rates of corrosion as a result. On my vessel, which was not aluminium--I used an isolating transformer. It was heavy. There are more modern devices available.
Outstanding! Thank you for taking the time to explain this :-)
That was awesome, you explained that so well and easy for people to understand.
Glad you think so!
When the connecting screws on the roof of the parking garage all rusted out when we had an interest in a condo in Mexico. No one believed me that it was because there were two different metals in contact. A few looked it up and were astounded it was indeed true. The builder should ever have used two different metals which was in reality three metals. The steel roof structure, the metal roofing and the subsequent incorrect metal screws. I think you have done such an amazing job, from scared, frustrated and in tears to in control and fully aware of the workings of your boat.
Good job! Thanks!
As usual, Sheddy, the episode was tops !!! When you pulled the stainless rail away from the aluminum, I thought for sure you were going to mention how to place a non-metal disc in-between metal to metal contact to reduce galvanic corrosion. Totally agree (on any kind of boat) anodes are our friend. ✨💕✨✌️✨⛵️⚓️🏝👣👙✨
Ah yeh, we did actually do that haha! Shouldve mentioned it ;) Anodes are my best friends now for sure
@@VetTails could the boat have been built with aluminum rails instead of ss?
very good explanation 👍
Thank you so much for this extremely informative video, specially for the zinc phosphate tip!
P.S. Love the pineapple shirt! ;-)
You're so welcome! The shirt has since disintegrated... I kept one sleeve as a rag for the memories haha
Very helpful. Appreciate it.
You are awesome! Informative and entertaining. Aloha!
Your intelligence seems to be endless and its amazing to see - Amazing :)
Haha their is an end to it believe me ;) Thank you!
@@VetTails Doubt it.. You're a fellow Aussie. Bloody legend ;)
pretty much the same with steel narrow boats on the canals
good luck and keep up the good work
Thanks, will do!
Parabéns linda doutora e mecânica muito guerreira gosto muito de você e este maraviloso comandante
Very interesting and informative video...take care and stay safe.
Thanks, you too!
Excellent video..
Great video. I would like to add there is a good product to avoid galvanic corrosion where contacts between dissimilar metals can't be avoided (example. Stainless steel bolts into aluminium). It's called DURALAC, a yellow paste that can be applied. Check it out :)
Great point! Going to look it up now thank you!
Great explanation! Glad to see you doing so well, medically, mechanically and electrically and other stuff too!
Thanks so much!
Got me worked up with that " sacrifice " for a moment but being so straight honest and beautiful awwww well 🤗 💝 💖.
well done , very good .
I enjoyed that a lot! You did a great job.
Thank you very much!
Great science lesson! I agree the internet is wonderful ....but have to seek a reputable source.
So glad that you look healthy & happy 🙂👌 All's well in New York. Our infection & hospitalization rates are very low. Schools are opening in a couple weeks. Some with modified classroom venues ...most will be hybrid or online. As good as it can be in a pandemic. Stay safe and well 😷✌️🇺🇸
So glad to hear things are going well, and 'the new normal' is coming gently. I hope we use this time to restructure some of the ways things were that maybe were not working for everybody equally! Thanks Christine stay chuffed and stay well too!
@@VetTails Me too Doctor!
very interesting video. Must have taken a while to learn all of that. My brain would have imploded and still might!
I was just out on a friends brand new dufour 390 when i said she should check her anodes when ever she gets a chance (since she charters her boat) I dived on the boat and saw her saildrive anode had a missing screw and was hanging off the saildrive, she didnt even know there was an anode there. Could have been an expensive mistake. I got the impression you didnt know any of this before you saw all of this damage and have learned a great deal since then. The last 2 bits of advice, dont drop any screws or metal in your boat, be hyper vigilant about it, if you drop a sss screw into the bilge you will end up with a hole in your boat, next any time you need to screw a sss screw into your alum, use duralac on the screw - it will isolate the 2 metals. gl hf.
good point
i would have used interprotect 2000e and use aluminum anodes not zinc. i would also get an electroguard 630afm kit for $1500 for iccm.
Awesome explanation lady 👍🏻
Thank you! 😃
Vet Tails' Sailing Chuffed I’m just replacing mine this week with the trudesign it’s really a no brainer I think
Well explained , aircraft suffer the same but not at the same rate as boats in salt water
Yeh I heard that you can use a or of aircraft paints on boats!
What about a soft wire brush on the end of drills to clean off the corrosion in the pitting in the boat ????
in a sailing boat, the simple fact of eletrostatic charges bild up in the mast or sails can generate enogth differential to promote galvanic or eletroctrolitic corosion ^^ but nice complete explenation BTW, nice video
Great point!
Thank you. Great vid. I finally understand ...
Great to hear!
you should be using high magnesium alloy anodes on aluminium hull. zink is good for a steel hull. you need some thing more reactive
Magnesium alloy is really good in fresh water, but zinc anodes will work well in salt water on an alu boat and are bit more readily available and cheaper. Zinc anodes slough more readily too so less chance of oxide build up rendering them inert.
So random I came across your channel.
Im polishing an aluminium V8 chev inlet manifold and searching for tips and tricks.
Im wondering now after seeing your video, if I attach an anode would it help inhibit corrosion in an engine?
Given its an engine its does use high tension and low voltage, plus has water running through it for cooling. Surely that has to attribute to corrosion in the block and head.
Im guessing if an anode could help an engine, someone would of already done it.
Man great project and you really have a presence about you on camera.
Im in Radelaide... So Go Oz content.
Wow. Loved the info. Thanks!
Glad you enjoyed it!
Brilliant...!
Thanks, nicely explained
Glad it was helpful!
Put rubber seals in between the metals to stop it conducting
the through hull fittings you showed as an example are not copper, they are bronze/ Brass, mix
Once again so sorry you had to go through all that. Dated a lady with a 64 mustang 1st year. Boy did she use the charm on me 6 months later it was a good car.
Worth it in the end!
@@VetTails True
What about paint it down with old engine oil to see if the oil might put any strengthener back into the aluminium
I am considering building my own Aluminum Sail boat.. I know its not a great investment, but, I just think its more about the adventure. I want a boat build to my specs, my way.. A place to call home for many years.
I saw one aluminium boat a dutch man built for him and his wife... 68ft... it was soooooo beautiful and the most perfectly designed vessel for comfort/style/use that I have ever seen. Not a think went unthought, and it was in the most beautiful condition when I saw it ten years after it was built because he takes care of it - it can be a good investment (well, you might not make money but you might not lose too much haha)