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 Just curious, what is it?		  New Topic  Topic Locked
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Kim Luckner
1st Mate

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USA
99 Posts
Initially Posted - 09/26/2011 :  10:13:48  Show Profile
On the ceiling of my quarter berth, just below the cockpit floor are "tan deposits". These are a series of bumps, trails & web-like "growths". I've washed them off before only to see them reappear in a few weeks. They're not mud wasp like structures but are raised about 1/16 of an inch. When you clean them off it doesn't seem like they're staining the fiberglass. Anyway 1)animal 2)vegetable 3)mineral. My guess is they're some kind of fungal growth but...
Seeadler
'79 C25 SR/FK #1432
Mentor Lagoons
Edited by - Kim Luckner on 09/27/2011 09:29:28

redeye
Master Marine Consultant

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3476 Posts
Response Posted - 09/26/2011 :  10:29:06  Show Profile
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Stinkpotter
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Djibouti
9076 Posts
Response Posted - 09/26/2011 :  10:36:08  Show Profile
Andromeda. (You can look it up.)
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aeckhart
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USA
1709 Posts
Response Posted - 09/27/2011 :  09:36:03  Show Profile  Visit aeckhart's Homepage
Looks like mold. I once found something similar growing in a damp corner of my mom's basement floor. Felt like I was in the Twilight Zone. I think I used diluted bleach or vinegar water to kill it.
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redeye
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3476 Posts
Response Posted - 09/27/2011 :  10:11:02  Show Profile
Yepper.. I don't know what it is.. but I'd start by putting some bleach on it. Dilute maybe 3 teaspoons in a gallon of water.
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OJ
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4382 Posts
Response Posted - 09/27/2011 :  14:19:30  Show Profile
The small, round bumps look like blisters.
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dmpilc
Master Marine Consultant

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USA
4593 Posts
Response Posted - 09/27/2011 :  14:41:45  Show Profile
Pod critters, you remember the movie. while you sleep, they take over your body.
Seriously, it looks like some kind of mold or fungus. Be sure that you have a fan on for good ventilation when you start cleaning it up, and a tarp over your cushions.
Vinegar and water, soft scrub, TileX, etc., scrape the "blisters" and clean them, too. did a Prior owner paint that ceiling?
Edited by - dmpilc on 09/27/2011 14:44:18
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Kim Luckner
1st Mate

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USA
99 Posts
Response Posted - 09/28/2011 :  05:57:26  Show Profile
Thanks to all, it's been raining a lot lately and with the cover on fresh air might be in short supply. Washed it off yesterday, again, with no bad effects.
I was curious if this was something others had seen.
The boat has original finish in this area. Definitively not blisters, there was condensation in the pictures I posted. I was surprised the 2 aft vents don't do a better job of controlling this.
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Stinkpotter
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Djibouti
9076 Posts
Response Posted - 09/28/2011 :  06:21:00  Show Profile
Looks like you need a Nicro solar vent to exhaust daytime damp air as the boat cools at night--very effective. The clamshell vents aft are intended to prevent buildup of gasoline fumes in the sail locker--not much else, especially on a still night. A single solar vent keeps most boats bone dry at night. You can "Search" out several threads on the topic.
Edited by - Stinkpotter on 09/28/2011 06:22:11
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Notice: The advice given on this site is based upon individual or quoted experience, yours may differ.
The Officers, Staff and members of this site only provide information based upon the concept that anyone utilizing this information does so at their own risk and holds harmless all contributors to this site.