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Old 03-08-2012
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Smile Interlux Micron 66 Failed in the Chesapeake

Hello Fellow Sailors:

Just a note of caution. My Micron 66 failed last year in the Chesapeake. The intense influx of fresh water made all the paint (corn flake) or peel off my bottom. I have used this paint with success in past years but it cannot take the pressure of fresh water. It cost me thousands to remove all the paint down to the base coat and start over this year. I am going to use Micron Extra which can stand the fresh water.

Big Moe
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Old 03-08-2012
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Re: Interlux Micron 66 Failed in the Chesapeake

Have used Micron Extra for years with good results. Used Ultima60 last year ( good for 2 years) with even better results Thanks for the recommendation T37Chef

Dave
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Old 03-09-2012
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Re: Interlux Micron 66 Failed in the Chesapeake

From the Interlux web site page for Micron 66:
Not for use in fresh water.
use in Salt water only
Micron 66 Antifouling Boat Paint | Interlux

From the Micron 66 datasheet:
Not suitable for use in fresh water
Interlux Datasheets: Antifouling, Boat Paint, Yacht Varnish & More

From the Interlux forum:
Micron 66 is not suitable for use on boats which are used in fresh water
Micron 66 failed - Yachtpaintforum.com
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Old 03-09-2012
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Re: Interlux Micron 66 Failed in the Chesapeake

Best to converse with mariners with local knowledge on what they are using. One paint might work well on the southern end of the Chesapeake may not work on the northern end...
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Old 03-09-2012
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Re: Interlux Micron 66 Failed in the Chesapeake

I will not comment on the substance of your post.

However, I will note that your profile has approximately 250 visits for only 36 posts, which I suspect is due to your avatar. Could you please enlarge the photo so we can judge your bounty?
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Old 03-09-2012
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Re: Interlux Micron 66 Failed in the Chesapeake

Quote:
Originally Posted by BigMoe View Post
Hello Fellow Sailors:

Just a note of caution. My Micron 66 failed last year in the Chesapeake. The intense influx of fresh water made all the paint (corn flake) or peel off my bottom. I have used this paint with success in past years but it cannot take the pressure of fresh water. It cost me thousands to remove all the paint down to the base coat and start over this year. I am going to use Micron Extra which can stand the fresh water.

Big Moe
We need more information!

* Where? The Bay varies from 100% salinity to fresh. Please be exact, as even some mid-Bay marinas are in creeks that are effectivly fresh.
* How frequently was the boat painted? Was it scrubbed? The Interlux rep I spoke with indicated that sailors who scrubbed a few times and stretched the paint as far as possible had few problems. Those that repainted preventively had more trouble.
* Do you winter in or haul out? Hauling can be a problem, while in-water boats do better.

Salinity is variable in the Bay.Chesapeake Bay Foundation | Salinity Map - Chesapeake Bay Foundation

Based upon this, Deale or Solomons Island would be the extream northern limit. Annapolis has seen multiple failures.
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Last edited by pdqaltair; 03-09-2012 at 09:58 AM.
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Old 03-09-2012
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Re: Interlux Micron 66 Failed in the Chesapeake

Ive found that just about all Interlux ablative paints will flake if the total thickness gets beyond ~0.040-0.050" thick.
Interestingly, with Micron CSC the formulation may have changed in the past few years and there is now a 'whitish' substrate agent that seems to enhance such 'flaking'.

Im in the Upper Ches. (Worton) and now use Micron Extra and find it 'the current best' (especially for slime) from the Canadian Maritimes all the way down through the Caribbean. Its 'really good' for those episodes of extremely foul slime producing far upper Ches. water in mid summer where the extremely heavy slime accumulation (past 3-4 years) enhances barnacle attachment & growth. Have had 'Extra' on now for several years and am quite pleased .... but still occasionally need to 'wipe' the hull with a 'squeegee'. Extra, Ive found, is (now) about the only coating that actually prevents hard growth in the far upper bay ... of course 'next year' will have a completely different situation with 'water stratification layer turnover' and prevailing winds, so it always remains 'crapshoot'.

Im beginning to think that the barnacles, etc. read all the bottom paint tech brochures and change their strategy accordingly!!!!
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Re: Interlux Micron 66 Failed in the Chesapeake

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Originally Posted by RichH View Post
Have had 'Extra' on now for several years and am quite pleased .... but still occasionally need to 'wipe' the hull with a 'squeegee'.
There is no anti fouling product legal for use in this country that will completely eliminate fouling in a saltwater environment. Hull cleaning on some kind of a regular basis is always needed.
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Re: Interlux Micron 66 Failed in the Chesapeake

The Ultima 60 is good also Rich. I switched from the Micron Extra which I did have good results from because I felt the ablative speed which it sloughed off of the Ultima was more indicitive of what we travel at. I beleive the Micron is at a higher speed. I am not denegrating the Micron Extra as it is a great paint

Most important to have the bottom cleaned a few times during the year too,
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