Cruisers Forum
 


Join CruisersForum Today

Reply
  This discussion is proudly sponsored by:
Please support our sponsors and let them know you heard about their products on Cruisers Forums. Advertise Here
 
Thread Tools Search this Thread Rate Thread Display Modes
Old 13-11-2018, 11:24   #16
Marine Service Provider
 
boatpoker's Avatar

Join Date: Nov 2008
Location: Whitby, Ontario or Bahamas
Boat: Benford 38 Fantail Cruiser
Posts: 4,202
Re: Bilge / keel delamination

Quote:
Originally Posted by Terra Nova View Post
I would not want either of you working on my boat.

Concrete?!!! Rocks?!!!

Build a proper mast step. Since you don't know how, hire a pro.
Agreed, these two seriously need some hands on guidance from a pro.
__________________

__________________
That hysterical laughter you hear as you sail a way in your "new" boat ..... is the seller.
boatpoker is offline   Reply With Quote
Old 13-11-2018, 12:19   #17
Registered User

Join Date: Mar 2016
Boat: McCurdy & Rhodes Custom 46
Posts: 644
Bilge / keel delamination

Quote:
Originally Posted by roverhi View Post
It was common practice in the days of wooden boats to fill voids around internal ballast with concrete. They were just trying to fill up space with something that was non compressable. Fibreglass builders poured in thickened polyester resin often with a thickening agent around loose ballast material in molded hollow keels.

Seems like whoever built the PO's boat either used concrete made with sand or some other fine grained agent. If they didn't put in enough cement in the mix it might break down over time. I'd bust out the crumbling mix and replace with polyester resin mixed with sand or some other non compressable material. Don't use epoxy as the the heat from the chemical reaction of resin and catalyst could start a fire in a conglomeration that thick.


Polyester curing is exothermic too. Iíve seen it char and smoke in a cup, let alone in a larger mass.
Thin layers, thin layers.
__________________

dfelsent is offline   Reply With Quote
Old 13-11-2018, 12:43   #18
Registered User

Join Date: Sep 2011
Location: san diego
Boat: yorktown custom 40' cutter
Posts: 311
Re: Bilge / keel delamination

i chipped out the concrete and re-built the step (oversized) with laminated ipe massively glassed/epoxied over a large section of the hull. not an area to cut corners...
robwilk37 is offline   Reply With Quote
Old 14-11-2018, 07:11   #19
Registered User

Join Date: Mar 2011
Location: Southport CT
Boat: J/36
Posts: 1,234
Re: Bilge / keel delamination

Vermiculite issues are well known to J/24 owners. It all has to come out. Replacing it with an epoxy slurry is a good idea, but as has been noted, has to be done in a way that won't melt things or start a fire. Read the Gougeon's (West Systems) book, which is available online for free. Thread is confusing. OP's profile says he owns a Southern Cross 31. Southern Cross 31 plans show a bulkhead, but no compression post? Replies talk about Catalinas. What is this boat?
psk125 is offline   Reply With Quote
Old 08-05-2019, 06:29   #20
Registered User

Join Date: Oct 2010
Location: Atlanta GA
Boat: Southern Cross 31
Posts: 61
Re: Bilge / keel delamination

Here is how we finally addressed the issue:

https://doctorsailboat.com/2018-10-m...-and-moonrock/
__________________

leveche420 is offline   Reply With Quote
Reply

Tags
bilge, delamination, keel

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not 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 Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
One Keel Vs Two Keels - Westerly Bilge Keel shorebird2 Monohull Sailboats 26 05-05-2014 12:33
Bilge Keel vs. Fin keel ShayK Monohull Sailboats 15 30-10-2013 13:03
Delamination? dheaslip Construction, Maintenance & Refit 16 11-02-2009 20:13
Moisture and Delamination - Survey Report Oz_Steve Construction, Maintenance & Refit 6 09-09-2008 06:08
Bowsprit area core delamination / rot / wet MV Construction, Maintenance & Refit 5 26-09-2007 07:27

Advertise Here


All times are GMT -7. The time now is 09:18.


Google+
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2020, vBulletin Solutions, Inc.
Social Knowledge Networks
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2020, vBulletin Solutions, Inc.

ShowCase vBulletin Plugins by Drive Thru Online, Inc.