Cruisers Forum

Join CruisersForum Today

Thread Tools Rate Thread Display Modes
Old 13-01-2011, 05:48   #1
Marine Service Provider
Pieter's Avatar

Join Date: Mar 2010
Location: Angra dos Reis, Brazil
Boat: Catamaran, FP 40 ft
Posts: 158
Replacement Seal of Goiot Deck Hatch

Esteemed forum members, first of all from Brazil a great 2011 for all...

Now, between the rain showers, i thought it to be a good idea to replace a rubber seal in one of the Goiot deck hatches... as i noticed that a little rain water was seaping through.... Took the old seal out, indeed it was worn out, cleaned the rim of old rubber and glue traces.... cleaned also the actual acrylic.. and measured and put the new (original from Goiot seal back using only a little superglue to keep it in place.... Was indeed a 5 min job. "Tested" the seal by using my deck shower for a couple of minutes, and boy was i happy to see that the cabine remained dry....
So, this morning (overnight we had torrential rains again) i checked the hatch.... big dissapointement: water all of the place...How is this possible? How difficult can it be: replacing a seal... and even after using for a couple of minutes the deck shower and all seemed ok... (i understand that there is a difference in the deck shower and a couple of hours downpour but even so...). Anyway, anybody a hint, suggestion, idea of what i should do different?

Thanks a lot and best rgds
Pieter Kommerij
SV Onda Boa

Pieter is offline   Reply With Quote
Old 13-01-2011, 06:11   #2
Registered User
KDH's Avatar

Join Date: Nov 2009
Location: Carribean
Boat: Wauquiez Centurian 42'
Posts: 270
Hi Pieter. Not sure if you mean you removed the acrylic lens and tried to reuse the rubber seal around it? Or if your hatch has a rubber compressible seal where you pull the hatch closed? We have Goiot hatches on our monohull and recently had a leak around the base of the hatch when rain was driven sideways by the wind. The water would get into to the plastic trim on the underside of the deck and then run along the edge and drip on the bunk. I ended up removing the hatch from the deck and it came up quite easily. Rebedded underneath with butyl rubber which took quite some time. Halfway through I wished I had used a caulk instead. If it's the acrylic lens you are talking about I suggest removing all the old seal and resealing with a new sealant. My Goiot lens are acrylic and I assume yours are too. To quote GordMay: "Most hatches have anodized aluminum frames, with Acrylic (Plexiglass™) or Polycarbonate (Lexan™) glazing (not glass), for which a mediun or hi-modulus neutral curing silicone sealant, such as Dow Corning 795, (NOT acetoxy* cure) is usually recommended.

You should probably seek specific recommendations (performance & compatibility) from your glazing supplier.

* If acetal cure (oxime) type silicone base sealant is used, the emitted gas causes corrosion & cracking (in plastics).

If your replacement glazing is actually glass, I'd recomment either a polysufide or apolyurethane adhesive sealant." The original thread is at: Replacing Hatch Glass

Good luck with the repair and Happy New Year to you as well! Cheers, Kim

KDH is offline   Reply With Quote
Old 13-01-2011, 07:57   #3
Senior Cruiser

Cruisers Forum Supporter

Join Date: Mar 2007
Location: Santa Cruz
Boat: Boatless Again
Posts: 3,718
While I have some new Goiot rubber seal material, I have found that most leaks are either between the aluminum frame and the fiberglass, or between the plexiglass lens and the aluminum frame. Silicone is typically used for both applications, and can break down over time due to the differential expansion between the aluminum and the other materials in the sun.

I also know that its amazing how an area that doesn't leak under the pressure of a hose jet can leak in the check if its the lens-frame joint that is leaking, I tape up that joint temporarily with the blue masking tape from 3M and see if that cures the leak.
donradcliffe is offline   Reply With Quote
Old 13-01-2011, 08:50   #4
Marine Service Provider
Pieter's Avatar

Join Date: Mar 2010
Location: Angra dos Reis, Brazil
Boat: Catamaran, FP 40 ft
Posts: 158
Thank you Kim, actualy i am talking abt the compressible seal... the actualy "window" seems to be in tact and ok. So, in my opinion, i can not use the silicon option, as i open and close the hatch for ventilation purposes... and so that is why there is this rubber seal inbedded in the alu frame... when closing the hatch some pressure is applied when closing and so i thought it should keep the water out....
Thanks for your valuable comments, and will check what i can do...
Pieter is offline   Reply With Quote
Old 13-01-2011, 08:52   #5
Marine Service Provider
Pieter's Avatar

Join Date: Mar 2010
Location: Angra dos Reis, Brazil
Boat: Catamaran, FP 40 ft
Posts: 158
Ok Don, thanks.... Just to make sure, i will put a sealant between the fibre glass and the alu frame, although it seems that that is not where the water enters... Thanks for your comments.
Best rgds
Pieter is offline   Reply With Quote

Goiot, hatch, seals

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
Rebedding Goiot Escape Hatch Windows Jon Hacking Construction, Maintenance & Refit 11 03-02-2013 13:16
Replacing the Seal on a Lewmar Hatch nigel1 Construction, Maintenance & Refit 2 29-03-2010 10:06
Shaft Seal Replacement on a Saildrive ggray Construction, Maintenance & Refit 2 18-01-2010 17:58
Goiot Hatch parts Ehumpal Construction, Maintenance & Refit 2 01-04-2009 13:26
Looking for bulk hatch seal irwinsailor Construction, Maintenance & Refit 1 25-01-2006 17:02

Our Communities

Our communities encompass many different hobbies and interests, but each one is built on friendly, intelligent membership.

» More about our Communities

Automotive Communities

Our Automotive communities encompass many different makes and models. From U.S. domestics to European Saloons.

» More about our Automotive Communities

Marine Communities

Our Marine websites focus on Cruising and Sailing Vessels, including forums and the largest cruising Wiki project on the web today.

» More about our Marine Communities

Copyright 2002-2015 Social Knowledge, LLC All Rights Reserved.

All times are GMT -7. The time now is 13:16.

Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2016, vBulletin Solutions, Inc.
Social Knowledge Networks
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2016, vBulletin Solutions, Inc.

ShowCase vBulletin Plugins by Drive Thru Online, Inc.