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windsong
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USA
318 Posts
Initially Posted - 06/25/2010 :  10:36:46  Show Profile
Four water stains have appeared near the bow. They're smooth to the touch, but what are they? I'll post the images larger than usual so you can see what I'm talking about.

Michael Hetzer
"Windsong"
2009 Catalina 250 WK HN984
Myrtle Beach, SC
Edited by - windsong on 06/25/2010 10:37:40

redeye
Master Marine Consultant

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3476 Posts
Response Posted - 06/25/2010 :  11:03:05  Show Profile
????????
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DaveR
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USA
2015 Posts
Response Posted - 06/25/2010 :  11:15:15  Show Profile  Visit DaveR's Homepage
Very odd. It looks like fluid damage to the fiberglass/gelcoat from the inside out. But what would be able to be absorbed like that? Have you pinged the hull with a plastic mallet or anything to see if there's a difference in sound?
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Champipple
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USA
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Response Posted - 06/25/2010 :  11:29:22  Show Profile  Visit Champipple's Homepage
They look like already repaired blisters ....or considering it is above the WL repaired glass and gel coat from some sort of damage
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Nautiduck
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Response Posted - 06/25/2010 :  12:29:20  Show Profile
Do they feel different to the touch? Have you tried to clean them off? Maybe some sort of oil or other stain??
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windsong
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USA
318 Posts
Response Posted - 06/25/2010 :  12:35:49  Show Profile
<blockquote id="quote"><font size="1" face="Verdana, Arial, Helvetica" id="quote">quote:<hr height="1" noshade id="quote"><i>Originally posted by Nautiduck</i>
<br />Do they feel different to the touch? Have you tried to clean them off? Maybe some sort of oil or other stain??<hr height="1" noshade id="quote"></font id="quote"></blockquote id="quote">

They are as smooth as the rest of the gelcoat. There is nothing I can think of that would have stained them in this way. The boat lives in the water. I have rapped on them with my knuckles; there is no noticeable difference in density. I have held off cleaning them because I wanted to send pictures to my boat dealer to get his thoughts. (remember, I bought this new, so there may be warranty issues).
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aeckhart
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USA
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Response Posted - 06/25/2010 :  13:18:59  Show Profile  Visit aeckhart's Homepage
Not to make light of your situation but......have you sailed the Gulf lately?
Edited by - aeckhart on 06/25/2010 13:19:36
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OJ
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USA
4382 Posts
Response Posted - 06/25/2010 :  13:56:41  Show Profile
<blockquote id="quote"><font size="1" face="Verdana, Arial, Helvetica" id="quote">quote:<hr height="1" noshade id="quote"><i>Originally posted by Champipple</i>
<br />They look like already repaired blisters ....or considering it is above the WL repaired glass and gel coat from some sort of damage
<hr height="1" noshade id="quote"></font id="quote"></blockquote id="quote">Ditto - did you purchase the boat new?
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DaveR
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Response Posted - 06/25/2010 :  14:02:45  Show Profile  Visit DaveR's Homepage
OK, that sounds logical, especially with the way the outer edges are. But why would repaired spots be allowing water intrusion?
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Stinkpotter
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Djibouti
9085 Posts
Response Posted - 06/25/2010 :  15:48:16  Show Profile
We don't know that this is water intrusion... I'm suspicious of some sort of resin problem in the laminate under the gelcoat, where perhaps an area in one lamination didn't harden properly and the unhardened resin is leaching through. I suppose that could take some time to happen... Can you see any of the inside of the hull in those areas from under the V-berth? Any similar patterns there?
Edited by - Stinkpotter on 06/25/2010 15:48:56
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GaryB
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USA
4311 Posts
Response Posted - 06/25/2010 :  17:07:57  Show Profile
Get the word out quick! The oil spill has entered the Gulf Stream and is fouling SC marinas!
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frog0911
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USA
1349 Posts
Response Posted - 06/25/2010 :  18:47:19  Show Profile
I have no idea what is causing your problem, but your hull has a five year warranty against such things a blisters. I would take pictures, as you did and contact the dealer who sold you the boat. He should contact Catalina for you and they will send someone to look at it. I would not spend time worrying about what the cause maybe, just spent your time making sure Catalina gets notified and sends someone to fix it.
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GaryB
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USA
4311 Posts
Response Posted - 06/26/2010 :  06:34:07  Show Profile
Looking at the top picture above it appears there is an area just inside from the edges that is a darker/deeper color than around the edges. Almost like the discoloration gets deeper. Notice the jagged edge in the color? I wonder if there was a problem with the gelcoat sticking to the mold when they pulled the boat from the mold and they repaired the area with hand applied gelcoat?

I had a discolored area in the blue gelcoat on my SeaRay that appeared about a year after I bought the boat. It looked kind of similar. I asked the dealer what was going on. They said the PO had the boat hanging in a lift and the metal fittings on the sling gouged a small area of the gelcoat which they repaired.

They suggested wet sanding the area. I did starting with 600 grit and progressed up to 2000 grit. It totally disappeared and shined like the rest of the gelcoat. It slowly came back several years later but I never bothered repeating the exercise. I thought I would wait until I get ready to sell the boat and then sand it out again.
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Stinkpotter
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Djibouti
9085 Posts
Response Posted - 06/26/2010 :  07:50:40  Show Profile
<blockquote id="quote"><font size="1" face="Verdana, Arial, Helvetica" id="quote">quote:<hr height="1" noshade id="quote"><i>Originally posted by GaryB</i>
<br />I had a discolored area in the blue gelcoat on my SeaRay...<hr height="1" noshade id="quote"></font id="quote"></blockquote id="quote">So..... Gary....... another $+!nkp*++er!
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DaveR
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USA
2015 Posts
Response Posted - 06/26/2010 :  08:02:34  Show Profile  Visit DaveR's Homepage
<blockquote id="quote"><font size="1" face="Verdana, Arial, Helvetica" id="quote">quote:<hr height="1" noshade id="quote"> We don't know that this is water intrusion... <hr height="1" noshade id="quote"></font id="quote"></blockquote id="quote">

Point taken. And because there's no difference in sound when pinging I'd not be thinking that at this point. And like I said in the beginning it looks more like extrusion, from inside out. Still seems odd to me (maybe because I'm quite ignorant of gelcoat and fiberglass construction or repair) that this area would change color over time.
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GaryB
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4311 Posts
Response Posted - 06/26/2010 :  10:37:25  Show Profile
<blockquote id="quote"><font size="1" face="Verdana, Arial, Helvetica" id="quote">quote:<hr height="1" noshade id="quote"><i>Originally posted by Stinkpotter</i>
<br /><blockquote id="quote"><font size="1" face="Verdana, Arial, Helvetica" id="quote">quote:<hr height="1" noshade id="quote"><i>Originally posted by GaryB</i>
<br />I had a discolored area in the blue gelcoat on my SeaRay...<hr height="1" noshade id="quote"></font id="quote"></blockquote id="quote">So..... Gary....... another $+!nkp*++er!
<hr height="1" noshade id="quote"></font id="quote"></blockquote id="quote">

Kinda. More of a wantabe really.

I bought the boat in '89 but the engine blew up 7 or 8 years ago and I've never had the time, money, or whatever other excuse I could think of to put $6k into an old boat. Don't want to sell it either as I'm kinda sentimental about it too. It's in an enclosed storage shed along with all my other junk so it's not really deteriorating.
Edited by - GaryB on 06/26/2010 10:38:03
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britinusa
Web Editor

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USA
5404 Posts
Response Posted - 06/27/2010 :  11:34:00  Show Profile  Visit britinusa's Homepage
Fiberglass ringworm.

seriously though, I agree, contact Catalina, they'll probably jump on the issue.

Paul
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Prospector
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Canada
3159 Posts
Response Posted - 06/27/2010 :  18:58:34  Show Profile  Visit Prospector's Homepage
Another thought...

Have you used any cleaners on teh dinghy lately? How likely tha tit would have rested against teh hull of your boat?

If you used a pertro-chemical based cleaner on the dinghy, I could see it staying on the rubber, and transfering to the FG of the boat. Maybe somethign like goo-gone or something.Is it likely that the dinghy is chafing the gel-coat?

Just asking, and hunting for possibilities...
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Stinkpotter
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Djibouti
9085 Posts
Response Posted - 06/27/2010 :  20:41:17  Show Profile
<blockquote id="quote"><font size="1" face="Verdana, Arial, Helvetica" id="quote">quote:<hr height="1" noshade id="quote"><i>Originally posted by Prospector</i>
<br />Another thought...

Have you used any cleaners on teh dinghy lately?...Is it likely that the dinghy is chafing the gel-coat?<hr height="1" noshade id="quote"></font id="quote"></blockquote id="quote">Reasonable questions, but notice that a dinghy is pictured by the bow, and very little of it is likely to be contacting the hull in the discolored areas. Also, the shapes of the discoloration, which go right to the thru-hull (that would have prevented contact by the dinghy) strongly suggest that the discoloration is coming from the inside out. I still suspect this is an underlying resin problem, although I have no idea what can reasonably be done about it now. Let's see what Catalina says.
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