Cruisers Forum
 


Join CruisersForum Today

Reply
 
Thread Tools Rate Thread Display Modes
Old 07-05-2010, 08:28   #1
Registered User

Join Date: May 2010
Location: Toronto
Boat: Douglas 32
Posts: 5
My Good Old Boat - Resealing Portholes

Hello to eveyone at Cruisersforum. I'm a new member who came aboard looking for a few pointers. My 10 yr. refit of Ocarina II, a Douglas 32 continues this season with the replacement of the main portlights. This is the second time I've done this job and I think I know the right way now. I thought I knew the right way last time, but cracks appeared around the edges after a couple of seasons. This time I've allowed 1/6" per foot of space for expansion around the perimeter and will not be cranking the fasteners tight until the silicone sealent is mostly set. Last time I used sika which didn't work that great. After 10 yrs. the areas where the sika was squeezed thin it had the consistency of adobe although it remained gooey in the spots that were deeper than about 1/16". I also suspect that I had used extruded rather than cast acrylic back then as the condition of the material in the area near the fasteners appeared flaky like mica. I considered butyl tape instead of 3-m silicone but as my ports are inset with bronze bezels the void around the edge varied too much for tape to fill in evenly. This time I'm also washing all surfaces with acetone because the old sealent seem to bond inconsistently to the bronze and gelcoat. There was probably some oil contaminating the surfaces previously.
I hope this time I've got it right,but if anyone has any other advice,please feel free to share.
__________________

__________________
ocarina is offline   Reply With Quote
Old 07-05-2010, 12:48   #2
Registered User
 
Misiu's Avatar

Join Date: Apr 2010
Location: Bocas del Toro, Panama
Boat: Catalina 30 "Niunia"
Posts: 180
Hi Ocarina and welcome to CF

Here is the link from another thread posted by GordMay which may help

Porthole, Portlight and Deadlight construction and installation.
__________________

__________________
Michał
"The acquisition of the knowledge of navigation has a strange effect on the minds of men." /Jack London/
Misiu is offline   Reply With Quote
Old 07-05-2010, 12:58   #3
Registered User
 
S/V_Surya's Avatar

Join Date: Mar 2009
Location: Sasafra river,MD
Boat: gulfstar ketch 41 Surya
Posts: 658
Good information. I will have to do this project sooner than later.
__________________
S/V_Surya is offline   Reply With Quote
Old 15-05-2010, 21:46   #4
Senior Cruiser
 
SkiprJohn's Avatar

Cruisers Forum Supporter

Join Date: May 2006
Location: Kea'au, Big Island, Hawaii
Boat: Cascade, Sloop, 42 - "Casual"
Posts: 14,192
Aloha and welcome aboard!
Kind regards,
__________________
John
SkiprJohn is offline   Reply With Quote
Reply

Tags
acrylic ports, new member, ted brewer

Thread Tools
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
Good to name of a boat before owning a boat? (yes/no) vveerrgg General Sailing Forum 29 04-11-2014 05:30
Hatches and Portholes fastcat435 Multihull Sailboats 17 12-04-2010 22:27
CSY 37 Portholes Fewpossesions Construction, Maintenance & Refit 3 24-02-2010 10:30
CSY 44 Portholes kanaloa Monohull Sailboats 4 28-05-2009 11:48
We need new portholes almost_there Construction, Maintenance & Refit 12 10-02-2009 08:52



Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -7. The time now is 20:03.


Google+
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Social Knowledge Networks
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.

ShowCase vBulletin Plugins by Drive Thru Online, Inc.