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bridma
Joined: 13 Sep 2011 Posts: 1155 City/Region: Comox
State or Province: BC
C-Dory Year: 2009
C-Dory Model: 22 Cruiser
Vessel Name: Nomad
Photos: Nomad
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Posted: Tue Mar 29, 2016 10:58 pm Post subject: Diaper Cream |
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It's that time of year again boys. Have you put your diaper cream on? I did my trim tabs and transducer this morning. It sure helps keep the growth in check.
Martin. |
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hardee
Joined: 30 Oct 2006 Posts: 12633 City/Region: Sequim
State or Province: WA
C-Dory Year: 2005
C-Dory Model: 22 Cruiser
Vessel Name: Sleepy-C
Photos: SleepyC
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Posted: Tue Mar 29, 2016 11:43 pm Post subject: |
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Hey Martin, I knew you babied your boat, but really now?
I'll bite, what are you using for diaper cream? Is that Zinc oxide stuff, Desitin? How much and how often? Or did I just get punked
Harvey
SleepyC
_________________ Though in our sleep we are not conscious of our activity or surroundings, we should not, in our wakefulness, be unconscious of our sleep. |
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Aurelia
Joined: 21 Aug 2009 Posts: 2333 City/Region: Gig Harbor
State or Province: WA
Photos: Aurelia
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hardee
Joined: 30 Oct 2006 Posts: 12633 City/Region: Sequim
State or Province: WA
C-Dory Year: 2005
C-Dory Model: 22 Cruiser
Vessel Name: Sleepy-C
Photos: SleepyC
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Posted: Wed Mar 30, 2016 12:27 am Post subject: |
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Last summer I had 6 weeks and that was broken up by 3 trailer trips, and an overnight on the trailer on each segment. The boat really came out pretty good, better than I expected. I did a wash down at the first and last trailer day but could not find a site for the second one. I do remember the trim tabs being "yucky".
Thanks Greg, it looks like I need to learn some more new "stuff".
Harvey
SleepyC
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JamesTXSD
Joined: 01 Mar 2005 Posts: 7451 City/Region: from island boy to desert dweller
State or Province: AZ
C-Dory Year: 2007
C-Dory Model: 25 Cruiser
Vessel Name: "Wild Blue" (sold 9/14)
Photos: Wild Blue
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Posted: Wed Mar 30, 2016 9:40 am Post subject: |
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Ah, you guys that live in the PNW, with your chilly water, have it made... rub on a little diaper cream and you're good to go?
Down here, in the land of swaying palm trees, warm sand, and bikinis, you can hear the critters in the water saying, "Ohhhh - fresh fiberglass! Mine! Mine! Mine!!" as you back the boat down the ramp. Without adequate bottom paint, you'll see growth and barnacles in less than two weeks.
We could probably use the diaper cream while we sit on an overturned bucket scrubbing/scraping the bottom (the boat bottom, that is) when we pull it out of the water.
Regular use of the boat really helps.
Bottom paint is your friend. |
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BrentB
Joined: 15 Jul 2006 Posts: 4420 City/Region: Greenwood
State or Province: IN
Photos: BrentB
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Posted: Wed Mar 30, 2016 11:29 am Post subject: |
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From Bennett
fyi
(SALTWATER ONLY) To deter electrolysis, a zinc anode should be attached to the top of each trim tab. Zinc must make direct contact with stainless steel. Do not paint zinc. Do not ground trim tabs to other underwater appendages.
Paint trim tabs to discourage marine growth:
1. Clean surface of all grease, oil, dirt.
2. Apply two coats of epoxy metal primer.
3. Apply two coats of anti-fouling paint. Actuator, including the piston, may be painted.
Unpainted trim tabs may acquire an orange discoloration. THIS OXIDATION
OF SURFACE CARBON MOLECULES IS NORMAL. The integrity of the stainless steel is not affected. Orange coating can be cleaned off, but may eventually return. Note: This discoloration should not be confused with the pitting and corrosion of electrolysis. _________________ Brent Barrett |
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bridma
Joined: 13 Sep 2011 Posts: 1155 City/Region: Comox
State or Province: BC
C-Dory Year: 2009
C-Dory Model: 22 Cruiser
Vessel Name: Nomad
Photos: Nomad
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Posted: Wed Mar 30, 2016 4:35 pm Post subject: |
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That's the stuff Harvey. Get it from the local store. Usually $6 to $8 (Can) depending on what size tin you get. Apply it on thick, just use your finger. One tin will last two or three years up here in the PNW. I do not put it on my trim tab zincs, which I replace every year. Don't forget your transducer.
Martin. |
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Kushtaka
Joined: 17 Dec 2013 Posts: 648 City/Region: Cordova
State or Province: AK
C-Dory Year: 1993
C-Dory Model: 22 Cruiser
Photos: Kushtaka
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Posted: Wed Mar 30, 2016 8:56 pm Post subject: |
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Does the zinc oxide in the diaper cream prevent electrolysis too??? |
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Aurelia
Joined: 21 Aug 2009 Posts: 2333 City/Region: Gig Harbor
State or Province: WA
Photos: Aurelia
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Posted: Wed Mar 30, 2016 10:09 pm Post subject: |
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Not so sure about electrolosis due to the petroleum base of the cream keeping water from contacting the zinc components very directly. The critters sure seem to stay away or have difficulty taking hold. These cremes have done as well as bottom paint on dinghy bottoms and are great on hard to paint boat bits and even done pretty well on some props. But it would be pretty messy for anything that needed handling.
Greg |
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hardee
Joined: 30 Oct 2006 Posts: 12633 City/Region: Sequim
State or Province: WA
C-Dory Year: 2005
C-Dory Model: 22 Cruiser
Vessel Name: Sleepy-C
Photos: SleepyC
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Posted: Wed Mar 30, 2016 11:32 pm Post subject: |
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OK, I get it. Desitin How thick do you put it on? Enough to show white, or just a thin layer. It doesn't dry so, do you repeat the application ? Seems it would wear off on the bottom of the trim tab after a while, wspecially at planning speeds.
Harvey
SleepyC
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bridma
Joined: 13 Sep 2011 Posts: 1155 City/Region: Comox
State or Province: BC
C-Dory Year: 2009
C-Dory Model: 22 Cruiser
Vessel Name: Nomad
Photos: Nomad
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Posted: Wed Mar 30, 2016 11:49 pm Post subject: |
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Harvey,
Useing my finger, I apply a thin coating so that you can see the white smear on all the surfaces you are paying attention too. This gets me through through the algae bloom season and anything else that wants to make my trim tabs their summer home.
Martin. |
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AstoriaDave
Joined: 31 Oct 2005 Posts: 994 City/Region: Astoria
State or Province: OR
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Posted: Wed Mar 30, 2016 11:49 pm Post subject: |
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I am betting the active ingredient in Desitin makes it tough for marine life to get a healthy start. IOW, it subtly poisons the surface. It is not the base for the cream, or the zinc oxide that inhibits the fungal growth, it is the antifungal ingredients.
Zinc oxide and petroleum jelly alone would not do the job.
I bet the active ingredients become incorporated jnto the surfafe of the trim tabs.
BTW, likely it is technically illegal to apply the Desitin ... so don't tell anybody about it! _________________ Dave Kruger
Astoria, OR |
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hardee
Joined: 30 Oct 2006 Posts: 12633 City/Region: Sequim
State or Province: WA
C-Dory Year: 2005
C-Dory Model: 22 Cruiser
Vessel Name: Sleepy-C
Photos: SleepyC
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Posted: Thu Mar 31, 2016 1:11 am Post subject: |
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Thanks for the hints, AND Dave, I would never put anything into the water that would be bad for it, but I will probably treat my boats diaper rash if it becomes an issue.
Harvey
SleepyC
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AstoriaDave
Joined: 31 Oct 2005 Posts: 994 City/Region: Astoria
State or Province: OR
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Posted: Thu Mar 31, 2016 2:11 am Post subject: |
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No worries, Harvey. A few dabs of diaper cream are nothing in the scheme of pollutants issued en masse, viz., Victoria's massive straight, no treatment outfalls.
Dab away, matey! |
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schiavolou
Joined: 10 Mar 2007 Posts: 122 City/Region: Wilton Creek, VA
State or Province: VA
C-Dory Year: 2007
C-Dory Model: 25 Cruiser
Vessel Name: Skimmer
Photos: Skimmer
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Posted: Wed Feb 15, 2017 12:38 pm Post subject: Desitin/ZnO as antifouling |
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Practical Sailor just published part of an article on this. Bottom line, it works on trim tabs, transducers, etc. - anything that is not spinning or sliding on and off of a trailer. _________________ Lou S.
Skimmer |
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