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Wet bulkhead #18481
05/25/20 12:19 PM
05/25/20 12:19 PM
Joined: Apr 2014
Posts: 17
Morristown, NJ
Sumner_Parker Offline OP
Member
Sumner_Parker  Offline OP
Member
Joined: Apr 2014
Posts: 17
Morristown, NJ
So, I was all set to just add four layers of glass to the ground down part as reinforcing and paint it in place of water damaged veneer. Thought it’s a good time to do something about high moisture readings in the bulkhead. Drilled a few holes… Top of the bulkhead is wet and mush; at the bottom of the long hole in photo it’s solid.
[Linked Image]

New plan is to cut another inch of the veneer away to the right and then cut across above the hole for the water/wiring, replace the plywood, cover with ten layers of glass, tab into hull and deck.

After drilling holes, appears that the strength of bulkhead for chainplates is in the glass on cabin side. Head side is just a few layers thick. Plywood separates the glass sides and adds compression strength to keep the hull from coming inwards.

Thoughts on:
-how much of old bulkhead core to replace?
-solid glass v plywood core for bulkhead?
-Glass layers, glass type, vacuum bag?

Didn’t see other threads that address this.



Attached Files
bulkhead.jpg [97.22 KBytes] - (411 downloads)
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Re: Wet bulkhead [Re: Sumner_Parker] #18494
06/09/20 08:11 PM
06/09/20 08:11 PM
Joined: Apr 2014
Posts: 17
Morristown, NJ
Sumner_Parker Offline OP
Member
Sumner_Parker  Offline OP
Member
Joined: Apr 2014
Posts: 17
Morristown, NJ
New plan. Removed cabinetry from head side and will replace section of rotted plywood core from there.
[Linked Image]

Attached Files
IMG_20200609_155244.jpg [103.82 KBytes] - (384 downloads)
Last edited by Sumner_Parker; 06/09/20 08:14 PM.
Re: Wet bulkhead [Re: Sumner_Parker] #18495
06/10/20 08:52 PM
06/10/20 08:52 PM
Joined: May 2007
Posts: 2,665
Portsmouth, RI
Rhapsody #348 Offline
Past J/30 Class President
Rhapsody #348  Offline
Past J/30 Class President
Joined: May 2007
Posts: 2,665
Portsmouth, RI
Start reading my old blog at this link, then go to the newer pages in the blog.

[Linked Image]

[Linked Image]

[Linked Image]

[Linked Image]

Last edited by Rhapsody #348; 06/10/20 08:54 PM.
Re: Wet bulkhead [Re: Sumner_Parker] #18551
08/04/20 12:32 PM
08/04/20 12:32 PM
Joined: Oct 2007
Posts: 160
Vancouver, BC, Canada
dlabrosse Offline
Senior Member
dlabrosse  Offline
Senior Member
Joined: Oct 2007
Posts: 160
Vancouver, BC, Canada
I had a similar issue with 1/3 of my entire bulkhead soaked. The plywood had essentially dissolved. In the end I had a local boatyard cut out the entire bulkhead and replace it. Foam core, glassed along the top (like it shoaled have been in the first place) and solid glass at the chainplates.


Dominique Labrosse
Red Five, #92

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