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ferret30
Joined: 22 Mar 2011 Posts: 569 City/Region: Seattle
State or Province: WA
C-Dory Year: 2006
C-Dory Model: 22 Cruiser
Vessel Name: Lily Pad
Photos: Lily Pad
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Posted: Sun Nov 06, 2011 1:17 pm Post subject: Exposed deck holes |
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Our 2006 22 had a cheap broken anchor roller when we got it and I've been getting things ready to replace it over the last few weeks. The (used) Lewmar pivoting roller that I have sits farther forward on the deck than the previous roller -- it has to for the pivoting part to clear the point of the bow.
This leaves 2 mounting holes from the previous roller exposed aft of the new one. I was going to do the undercut/epoxy process on all the existing holes anyway since they won't match the new hardware pattern, but I was wondering if it's ok to have exposed epoxy on the deck, or if this should really be covered by gelcoat.
As a temporary fix I could install bolts through the exposed holes, bedded with butyl tape, etc., just to cover the epoxy.
Thanks |
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starcrafttom
Joined: 07 Nov 2003 Posts: 7932 City/Region: marysville
State or Province: WA
C-Dory Year: 1984
C-Dory Model: 27 Cruiser
Vessel Name: to be decided later
Photos: Susan E
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Posted: Sun Nov 06, 2011 1:24 pm Post subject: |
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You do not have to cover the epoxy with gel coat unless you are worried about the looks. epoxy is for sealing holes and protecting the core. _________________ Thomas J Elliott
http://tomsfishinggear.blogspot.com/ |
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ferret30
Joined: 22 Mar 2011 Posts: 569 City/Region: Seattle
State or Province: WA
C-Dory Year: 2006
C-Dory Model: 22 Cruiser
Vessel Name: Lily Pad
Photos: Lily Pad
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Posted: Sun Nov 06, 2011 1:32 pm Post subject: |
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Great! I was just worried it wasn't an acceptable surface material, i.e. it would break down from UV exposure. If it's fine to leave it exposed then I'm happy. |
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BRAZO
Joined: 29 Jul 2008 Posts: 650 City/Region: Full-time Travel
State or Province: NV
C-Dory Year: 2008
C-Dory Model: 22 Cruiser
Vessel Name: Meyer Meyer
Photos: BRAZO
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Posted: Sun Nov 06, 2011 1:52 pm Post subject: |
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ferret30 wrote: | Great! I was just worried it wasn't an acceptable surface material, i.e. it would break down from UV exposure. If it's fine to leave it exposed then I'm happy. |
My understanding is that epoxy does need UV protection of some sort - but I'm far from an expert.
Here is a quote from West System website
The function of a finish coating like paint or varnish over an epoxy barrier coat, is to decorate the surface and protect the epoxy from sunlight. _________________ 2008 CD22 Twin 50hp
Full-time Travel - Sprinter4x4, International, C-DORY 22 |
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ferret30
Joined: 22 Mar 2011 Posts: 569 City/Region: Seattle
State or Province: WA
C-Dory Year: 2006
C-Dory Model: 22 Cruiser
Vessel Name: Lily Pad
Photos: Lily Pad
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Posted: Sun Nov 06, 2011 2:02 pm Post subject: |
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Well then, I've got a use for the old hardware! I'll just redrill after the epoxy cures and put the hardware back in. |
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Sea Wolf
Joined: 01 Nov 2003 Posts: 8650 City/Region: Redding
State or Province: CA
C-Dory Year: 1987
C-Dory Model: 22 Cruiser
Vessel Name: Sea Wolf
Photos: Sea Wolf
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Posted: Sun Nov 06, 2011 4:24 pm Post subject: |
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The epoxy is far less in need of protection if it is pigmented, i.e., has color in it.
Clear epoxy does break down much more than pigmented epoxy.
The West system joins wood parts with clear epoxy.
I had a wooden mahogany cold moulded sailboat that we switched over from a varnished exterior to clear epoxy.
The epoxy clear finish did break down, though quite slowly.
Colored or pigmented epoxy stops the ultra violet light that does damage to the epoxy bonds at the surface of the coating.
Paint will protect the epoxy even better, but it, too, will have to be replaced as it breaks down.
This is my understanding, anyway!
Joe.  _________________ Sea Wolf, C-Brat #31
Lake Shasta, California
 
"Most of my money I spent on boats and women. The rest I squandered'. " -Annonymous |
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thataway
Joined: 02 Nov 2003 Posts: 21378 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: Sun Nov 06, 2011 5:11 pm Post subject: |
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I agree that epoxy will gradually break down. It is slow, but best to not be left "bare". Pigment will help. It may yellow. You can fill the holes with epoxy, mixed with pigment and filler (cabosil is used to thicken the epoxy, and I also use high density filler--tape under the hole, so that epoxy will not "drip" thru.
After you can either paint, or cover with gel coat. If the epoxy is sanded and well cured, no amine on the surface, gel coat can adhere fairly well. You can use a dremel tool to make a similar non skid pattern, or make a mold from other areas of the deck, it the hole is in the nonskid area. _________________ 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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ferret30
Joined: 22 Mar 2011 Posts: 569 City/Region: Seattle
State or Province: WA
C-Dory Year: 2006
C-Dory Model: 22 Cruiser
Vessel Name: Lily Pad
Photos: Lily Pad
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Posted: Sun Nov 06, 2011 5:56 pm Post subject: |
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For now I am just undercutting and filling the holes with thin then thickened epoxy as explained on the pbase website and brazo's thread.
I test fit my pivoting roller today and it actually won't fit because the front of the fixed plate it's warped (from contact with the pivoting plate I'm guessing) and won't sit even close to flat on the point of the bow. I done want to count on butyl tape on filing the gap and also would be concerned about damaging the point of the bow.
I also noticed that for the pivoting part of the roller to not hit the point of the bow, the front bolt hole would be so far forward that it would be imperator to get a decently sized fender washer up in the v berth ceiling. That's strange since I know there are other 22s with this roller.
So anyway, I'm going to fill these holes and then probably mount my fixed Lewmar roller instead. It's perfectly flat on the bottom and I don't plan on getting a windlass in the foreseeable future anyway. |
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localboy
Joined: 30 Sep 2006 Posts: 4673 City/Region: Lake Stevens via Honolulu
State or Province: WA
C-Dory Year: 2007
C-Dory Model: 25 Cruiser
Vessel Name: 'Au Kai (Ocean Traveler)
Photos: 'AU KAI
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