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 Catalina 25 Specific Forum
 Sealing newer style windows		  New Topic  Topic Locked
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Ben
Master Marine Consultant

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USA
1234 Posts
Initially Posted - 06/17/2012 :  06:03:49  Show Profile
Hi all,

I have an 87 C25, and it has the style windows without the metal frames on the exterior. My windows leak, like those of a lot of boats. I've tried removing the windows to reseal them, but they're glued in pretty well. Can I just take a bead of caulk around the outside edges of the windows where they meet the gelcoat? I don't know much about silicon caulk and don't know if it's appropriate for exterior use, or if there's a better material to use, like 3200, or 4000?
Ben
Beneteau 361
Viking Kitty
Columbus, Ohio
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Davy J
Master Marine Consultant

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USA
1511 Posts
Response Posted - 06/17/2012 :  06:12:39  Show Profile
Here is my battle with the '87 windows:

http://www.catalina-capri-25s.org/forum/topic.asp?TOPIC_ID=23031& SearchTerms=new,windows

I had some temporary success prior to that using "flow-able windshield sealant" found in auto parts stores. But replacing and resealing the windows has stopped all leaks.
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Nautiduck
Master Marine Consultant

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USA
3704 Posts
Response Posted - 06/17/2012 :  12:19:26  Show Profile
Davy, nice work. I am needing to do this same project. I have a couple of questions.

Did a lot of the 795 squeeze out around the inside and outside edges when you pushed the windows into place?

What did you use as the sealant for the final treatment around the installed windows - 795 or something else?

Thanks. Glad to see that the result can be so good looking.
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Davy J
Master Marine Consultant

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USA
1511 Posts
Response Posted - 06/17/2012 :  14:53:14  Show Profile
<blockquote id="quote"><font size="1" face="Verdana, Arial, Helvetica" id="quote">quote:<hr height="1" noshade id="quote">Did a lot of the 795 squeeze out around the inside and outside edges when you pushed the windows into place?

What did you use as the sealant for the final treatment around the installed windows - 795 or something else?<hr height="1" noshade id="quote"></font id="quote"></blockquote id="quote">
A little bit squeezed out on the inside, not much on the outside. However, I think this will depend on how big of a bead you apply.

Dow Corning 795 was used between the fiberglass and the acrylic and the final bead around the outside of the windows. After a bit of research, I think this is what the Catalina factory does on newer boats.
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Nautiduck
Master Marine Consultant

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USA
3704 Posts
Response Posted - 06/17/2012 :  18:14:40  Show Profile
Thanks. I was trying to figure out if they really lay on the 795, let it squeeze out and then smooth it out then as the final touch or first get the window adhered and then do a bead around the edge afterwards.
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Davy J
Master Marine Consultant

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USA
1511 Posts
Response Posted - 06/18/2012 :  05:02:19  Show Profile
If you look at the original thread, I taped off the windows, then I applied a bead, squeegeed this down, removed the tape, applied another bead, I think it was about 3/16" to a 1/4". Then pushed the windows into place. The next day I applied a small bead around the outside and smoothed into place.

I noticed at the boat shows, that on new Catalinas, the outside bead is fairly wide. So when I cut new windows, I cut them slightly smaller so that there would be a larger bead of sealant around the outside.
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Notice: The advice given on this site is based upon individual or quoted experience, yours may differ.
The Officers, Staff and members of this site only provide information based upon the concept that anyone utilizing this information does so at their own risk and holds harmless all contributors to this site.