What is this? Cracks in gel coat leaking a brown dry goop! - SailNet Community
Reply
 
LinkBack Thread Tools
post #1 of 13 Old 09-06-2007 Thread Starter
I'm the FNG still...
 
Lancer28's Avatar
 
Join Date: Jul 2007
Posts: 397
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 9
 
What is this? Cracks in gel coat leaking a brown dry goop!

I've got a few cracks in my gelcoat I thought I took care of by careful sanding, gel coat replacement, then painting.

When I got this boat, there was a tarp over it and the parts on each side I am talking about have been constantly covered, so this is odd.

Parts that are affected are both sides of the hull where the tarp was, 4 " below hull/deck joint.

There are some cracks that re-appeared and they slowly seep this brown/tan stuff that feels kinda oily but slightly gummy and sticky. It smells like some sort of wood oil gone bad.

I am totally stumped, I've searched all over, and I have no idea how to address this. It is not a beauty thing, as it takes weeks to grow even a small dab of it less than the tip of a ball point pen, but is there some deeper hidden problem that I should take care of now?

The marine survey I had done for insurance showed "reletively dry readings" on the hull. It's not a saturated balsa core leaking some wicked ooze, and I should sell the boat before I have to rebuild the entire hull is it?

Thanks,

Robert
Lancer28 is offline  
Quote Quick Reply Share with Facebook
Sponsored Links
Advertisement
 
post #2 of 13 Old 09-06-2007 Thread Starter
I'm the FNG still...
 
Lancer28's Avatar
 
Join Date: Jul 2007
Posts: 397
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 9
 
This is a photo of how it looked when I picked up the boat, in a very "advanced" state of goop-growth. It is now only a couple of spots, cracked back through the paint, and seeping about the size of the O on your screen over a few weeks' time.


Lancer28 is offline  
Quote Quick Reply Share with Facebook
post #3 of 13 Old 09-06-2007 Thread Starter
I'm the FNG still...
 
Lancer28's Avatar
 
Join Date: Jul 2007
Posts: 397
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 9
 
after painting with no spots...

Lancer28 is offline  
Quote Quick Reply Share with Facebook
post #4 of 13 Old 09-06-2007
Señor Member
 
TrueBlue's Avatar
 
Join Date: Oct 2004
Location: Narragansett Bay
Posts: 4,853
Thanks: 0
Thanked 1 Time in 1 Post
Rep Power: 13
     
Quote:
It's not a saturated balsa core leaking some wicked ooze, and I should sell the boat before I have to rebuild the entire hull is it?
Just after reading the title before reading your post, that was my first thought.

True Blue . . .
sold the Nauticat
TrueBlue is offline  
Quote Quick Reply Share with Facebook
post #5 of 13 Old 09-06-2007
me at 67!
 
deniseO30's Avatar
 
Join Date: Nov 2006
Location: Bristol pa
Posts: 6,966
Thanks: 55
Thanked 126 Times in 115 Posts
Rep Power: 10
   
is that

the deck to hull overlap? It sounds from what your saying that the core is rotting and the repair was on the surface only. When it heats up in the sun the ooze is the water and rotted core "outgas" seeping out the cracks or finding its own way out by making blisters. when it's cold it freezes and expands also. The bad core has to be dried, epoxy saturatrated and or replaced.

More information about the boat would be helpful because others may own that same boat and know what your facing in fixing it. Don't despair I'm sure it's very repairable. But I know a guy that's looking for a boat cheap! Possibly your overreacting?

good luck!

Denise, Bristol PA, Oday 30. On Tidal Delaware River, Anchor Yacht Club.
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

My last project!
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.


My boat is sold!
deniseO30 is offline  
Quote Quick Reply Share with Facebook
post #6 of 13 Old 09-06-2007
Telstar 28
 
sailingdog's Avatar
 
Join Date: Mar 2006
Location: New England
Posts: 43,290
Thanks: 0
Thanked 15 Times in 12 Posts
Rep Power: 14
         
Sounds like core material rotting...

Sailingdog

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

Telstar 28
New England

You know what the first rule of sailing is? ...Love. You can learn all the math in the 'verse, but you take
a boat to the sea you don't love, she'll shake you off just as sure as the turning of the worlds. Love keeps
her going when she oughta fall down, tells you she's hurting 'fore she keens. Makes her a home.

—Cpt. Mal Reynolds, Serenity (edited)

If you're new to the Sailnet Forums... please read this
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
.

Still—DON'T READ THAT POST AGAIN.
sailingdog is offline  
Quote Quick Reply Share with Facebook
post #7 of 13 Old 09-06-2007 Thread Starter
I'm the FNG still...
 
Lancer28's Avatar
 
Join Date: Jul 2007
Posts: 397
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 9
 
Well, it is my favorite boat for sure. I'll keep collecting diagnosis and let you guys know what happens through this thread as I get into repairing it. It dies appear on both sides, exactly where the tarp was touching the hull, and I think it also may have something to do with saturation of the fiberglass since there were gelcoat cracks there too.
Lancer28 is offline  
Quote Quick Reply Share with Facebook
post #8 of 13 Old 09-06-2007
Here .. Pull this
 
Join Date: Jan 2007
Posts: 2,031
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 9
 
When styrene dissolves it leaches out in a dark brown colour. Rotten core will not ooze until it is totally liquid, and if it's balsa, it would probably be black by then.

If I am reading correctly, this is in an area that you worked on. I'd venture that something that you used is not compatible with the resins that the boat was made of, hence it is dissolving OR the tarp has somehow funneled enough water into the crack, that the styrene has dissolved and is leaching now.

It might be a good idea to drill a hole in there so you can see what has happened. If you don't want to take such a big step, try running an electronic stud finder along it and see if you get any blips, which can identify very significant differences in density.
Sailormann is offline  
Quote Quick Reply Share with Facebook
post #9 of 13 Old 09-07-2007
Senior Member
 
saurav16's Avatar
 
Join Date: Mar 2007
Location: NY
Posts: 312
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 9
 
Send a message via AIM to saurav16
If the core was wet wouldn't you here thuds when struck with the back of a screw driver. I would sound out the portions where there are cracks. If you get a dull response then that means the core is wet there and needs to be taken care of.
saurav16 is offline  
Quote Quick Reply Share with Facebook
post #10 of 13 Old 09-08-2007
Senior Member
 
landlockvasailor's Avatar
 
Join Date: Aug 2007
Location: Virginia
Posts: 132
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 9
 
I worked on a boat will similar, it was the blue tarp heating, cooling and without enough circulation, causes cracks to wick in water. Like was said, use a screwdriver or a rubber malet and test. Start from the bottom of the keel and work up the hull well far away for the area. When you get the area in question your ears will by that point will have a refernce to compare.
Tom
http://landlockedvasailor.blogspot.com/
landlockvasailor is offline  
Quote Quick Reply Share with Facebook
Reply

Quick Reply
Message:
Options

By choosing to post the reply above you agree to the rules you agreed to when joining Sailnet.
Click Here to view those rules.

Register Now



In order to be able to post messages on the SailNet Community forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
Please note: After entering 3 characters a list of Usernames already in use will appear and the list will disappear once a valid Username is entered.


User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in









Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.




Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page



Similar Threads
Thread Thread Starter Forum Replies Last Post
Hairline Cracks on deck in Gel Coat Windermere Gear & Maintenance 8 07-10-2007 11:03 PM
gel coat dm567 Gear & Maintenance 15 01-02-2007 11:55 AM
Gel coat questions JoeBailey Boat Review and Purchase Forum 3 09-04-2006 01:20 PM
Gel coat cracks seac Gear & Maintenance 3 12-13-2002 05:46 PM
Gel coat vs epoxy for hull dpoperngr Gear & Maintenance 6 10-28-2002 11:48 PM

Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome