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timflan
Joined: 16 May 2006
Posts: 546
City/Region: Seattle
State or Province: WA
C-Dory Year: 2005
C-Dory Model: 22 Cruiser
Vessel Name: Two Lucky Fish +1
Photos: Two Lucky Fish
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Sunbeam
Joined: 23 Feb 2012
Posts: 3990
City/Region: Out 'n' About
State or Province: Other
C-Dory Year: 2002
C-Dory Model: 22 Cruiser
Photos: Sunbeam
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 Posted: Wed May 08, 2013 1:03 pm Post subject: |
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| thataway wrote: | | I do have to emphaisze that you want the cut out to be snug around the hatch bevel. If it is not, then fill the areas where it is not with glass tape and epoxy, epoxy with filler. |
Re-reading this thread this morning, I see this and it's definitely a good point. I have not removed/replaced the forehatch, but when I took out my old lazarette hatches to put in new ones, some of the cut-out was really sloppy/wide as compared to the hatch flange. That left very little contact between the flange and the boat in those areas. Contrary to what one sometimes sees (caulk globbed up around the outside of a hatch/port/etc.), the caulk that is doing the job is that which is between the flange and the deck - so if you don't have much flange/deck interface, you don't have much sealant doing the job.
If I had just reinstalled my original lazarette hatches, I probably still would have added glass in a few places where they were "generous" with the cut-out (as it turned out the new hatches were slightly smaller, and so I added glass, but I just mean that even the original ones were a "barely" fit in some areas due to over-large cutouts).
Do you remember if you had any areas like this?
Sunbeam
PS: Since I have not removed my forehatch, I wasn't thinking about how it is fastened to the deck (and don't actually know even now). If it's just "sitting there," then I would not use butyl either. Butyl is a great, sticky, bedding compound that lasts seemingly forever while staying stretchy/sticky and thus does a great job keeping water out; but it is not a super-duper adhesive, so I wouldn't use it on anything where the sealant was doing the "fastening" to the boat. |
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thataway
Joined: 02 Nov 2003
Posts: 21387
City/Region: Pensacola
State or Province: FL
C-Dory Year: 2007
C-Dory Model: 25 Cruiser
Vessel Name: thataway
Photos: Thataway
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| Posted: Wed May 08, 2013 4:26 pm Post subject: |
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The aluminum frame is screwed into the outer layer of the gel coat, and into the balsa--it is not into the inner layer of glass. This is a fairly thin layer of glass--I have not measured it, but maybe 1/8"... There should be no sealant visable around the outside of the hatch frame (masking tape allows good clean up). The most of the seal is back by the "L". of the frame. There the sealant is thicker.
_________________
Bob Austin
Thataway
Thataway (Ex Seaweed) 2007 25 C Dory May 2018 to Oct. 2021
Thisaway 2006 22' CDory November 2011 to May 2018
Caracal 18 140 Suzuki 2007 to present
Thataway TomCat 255 150 Suzukis June 2006 thru August 2011
C Pelican; 1992, 22 Cruiser, 2002 thru 2006
Frequent Sea; 2003 C D 25, 2007 thru 2009
KA6PKB
Home port: Pensacola FL |
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