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Old 02-05-2016, 08:13 PM   #61
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...

I think most boaters think a well-designed wood boat is terrific as long as it's someone else's wood boat.
Never a more true statement. ... Thankfully, I've got no exterior wood.
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Old 02-06-2016, 08:54 AM   #62
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Look what I found!
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Old 02-06-2016, 09:03 AM   #63
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Wish it had the previous owners listed, but sadly no.
I was in Vietnam the year this boat was built. In early 1969 I took and week of R&R in Hong Kong and traveled to Kowloon. Is it Karma!
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Old 02-06-2016, 10:01 AM   #64
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https://www.facebook.com/media/set/?...0&l=fa7289d7ce

These are delignification pictures due to electrolysis in the wood. The wood turns soft and punky and powdery and runs deep inside. Notice it is wood bubbling-frothing out under paint.

Surface shredding of wood fibers is mostly on the surface of the wood, or can be in splits - cracks in the wood. And you wont see that on painted wood.

These are good pics, so I saved from the site.
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Old 02-06-2016, 04:11 PM   #65
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Originally Posted by sdowney717 View Post
https://www.facebook.com/media/set/?...0&l=fa7289d7ce

These are delignification pictures due to electrolysis in the wood. The wood turns soft and punky and powdery and runs deep inside. Notice it is wood bubbling-frothing out under paint.

Surface shredding of wood fibers is mostly on the surface of the wood, or can be in splits - cracks in the wood. And you wont see that on painted wood.

These are good pics, so I saved from the site.
Thanks for the pics. Pretty ugly stuff. Hope the repair was not to $$$.or difficult.
I'll post some "my" hair pics next week. It is surface only no bad wood underlying.
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Old 02-06-2016, 04:18 PM   #66
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Post 35 prompted a couple of requests for the movie title I mentioned.
It is " The Angriest Man in Brooklyn ".

Bob
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Old 02-06-2016, 05:39 PM   #67
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Thanks for the pics. Pretty ugly stuff. Hope the repair was not to $$$.or difficult.
I'll post some "my" hair pics next week. It is surface only no bad wood underlying.
Oh, not my boat, just examples to look at.
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Old 02-06-2016, 06:09 PM   #68
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That's good. I would not have a good day if we found that on my boat. ARRGH. !
Two days of surveys Tuesday, wish me luck.
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Old 02-06-2016, 06:44 PM   #69
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Be wary of any "marine electrician" who uses the term "electrolysis". No certified electrician or corrosion analyst will use that term as it refers to chemical changes in an electrolyte (water) due to the passage of electrical current. What you are really dealing with is either stray current or galvanic current. If they use that term .... hire someone else.
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Old 02-06-2016, 08:20 PM   #70
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Greetings

If someone uses the term "electrolysis" to get the point across to someone else who does not have a chemistry degree or has no more knowledge and experience than the typical toy boat surveyor then the word is good to use. It is the message, not the chemistry that a boater should care about.

Page 23:

http://www.mcclavemarine.com/text%20...oden.Boats.pdf

"The problem is sometimes referred to as “electrolysis rot”. Because “delignification” is such a tongue-twister, “Cathodic Wood Damage” is probably the best term to describe the phenomenon.
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Old 02-06-2016, 08:23 PM   #71
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Thanks boatpoker, I will heed that advise.
Being a former dirt person please excuse any faux pas I may commit. I am not really that scary. At least my my wife does not think so.
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Old 02-06-2016, 08:57 PM   #72
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Originally Posted by RT Firefly View Post
Greetings

If someone uses the term "electrolysis" to get the point across to someone else who does not have a chemistry degree or has no more knowledge and experience than the typical toy boat surveyor then the word is good to use. It is the message, not the chemistry that a boater should care about.

Page 23:

http://www.mcclavemarine.com/text%20...oden.Boats.pdf

"The problem is sometimes referred to as “electrolysis rot”. Because “delignification” is such a tongue-twister, “Cathodic Wood Damage” is probably the best term to describe the phenomenon.
Awww. The attached looks like the very thing I hoped to get some 40+ posts ago. Thanks RTF, as always your answers/posts are spot on. Now I will get out a pen and paper and get a algebra tutor ( my wife ) and digest this monster.
Interestingly, the previous survey did mention delighnification and catholic wood damage. Not that the boat had any but it was a very real possibility and needed to be watched carefully.
I have said it in earlier posts and it is important to say it again.
This forum's collective wisdom and ability to communicate effectively is IMO one of the best resources to boaters who wish to stay informed.
Thanks to all who participate.
So to all of you great guys.
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Old 02-06-2016, 09:14 PM   #73
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Greetings,
Mr. BB. You're welcome but I cannot claim authorship. It suddenly appeared to me from an expert outside source...I will pass on your thanks.



AYBC approved!
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Old 02-06-2016, 09:45 PM   #74
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Wink Hull 28

We purchased our alaskan almost a year ago. Our first year has been amazing. We love her and want to make sure she continues through the seas for a very long time.
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Old 02-06-2016, 11:40 PM   #75
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We purchased our alaskan almost a year ago. Our first year has been amazing. We love her and want to make sure she continues through the seas for a very long time.
Great pic. Send some more please.
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Old 02-07-2016, 12:13 AM   #76
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Quote:
Originally Posted by RT Firefly View Post
Greetings

If someone uses the term "electrolysis" to get the point across to someone else who does not have a chemistry degree or has no more knowledge and experience than the typical toy boat surveyor then the word is good to use. It is the message, not the chemistry that a boater should care about.

Page 23:

http://www.mcclavemarine.com/text%20...oden.Boats.pdf

"The problem is sometimes referred to as “electrolysis rot”. Because “delignification” is such a tongue-twister, “Cathodic Wood Damage” is probably the best term to describe the phenomenon.
Merely pointing out that no qualified tech would use that term and if someone does use that term it is likely that they don't really understand whats involved. The link you provided also contains the proper definition of electrolysis.
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Old 02-07-2016, 09:24 AM   #77
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I did a search on this forum for the word "electrolysis" and found dozens (I'm sure there are more) of posts using it to describe stray current corrosion, galvanic corrosion, delignification, dezincification, poultice corrosion, crevice corrosion and a few others. Obviously these people did not know what they were talking about and neither did anyone else. If we do not use the correct terminology the message is lost.
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Old 02-07-2016, 09:29 AM   #78
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Saloon!
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Old 02-07-2016, 09:38 AM   #79
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Old 02-07-2016, 09:41 AM   #80
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