Moderator: GreenLake
Pot life of the mixed
adhesive is approximately 45 minutes at 70°F. However, a
coated joint may still be pulled up tight for two hours. Cap containers
promptly after use. Mixing in small lots or with large
surface area exposure will extend pot life.
GreenLake wrote:On carlins (the wood behind the coamings):
Since you have the deck off, replacement is much easier. Otherwise, "slight, beginning rot" would be a good application for a rot-restoring treatment.
The structural importance of these carlins is indeed in anchoring the coamings. The coamings are tall (top to bottom) and will easily take all the bending forces (what you call longitudinal).
I predict that making the carlins stiffer will have little effect, because the coamings are so strong in resisting bending in the vertical plane.
In the horizontal plane, the deck laminate will transfer any loads from any tendency of bowing out at the rubrail into compression loads for the coamings, and they are plenty strong for the purpose.
So, all the carlins need to provide is a solid attachment between deck and coaming. Your idea with the red cedar looks promising, with the fasteners run through. I assume that splitting the wood and inserting a ply of fiberglass tape is done with an eye towards preventing splits.
You don't appear to state this anywhere, but I assume the tape would need to lie vertically for best effect. Correct?
GreenLake wrote:On inspection ports, drain holes in seat:
From a safety point of view, the bladder version looks like it would serve. With the big hole open, it would be easy to test the bladder on every trip.
From the class rules, though, this might not be legal. You might need to be able to close any holes if you ever want to race the boat under class rules.
Sizing the drain holes such that they can accept a rubber stopper would possibly be enough - my DS1 came with 1" holes that had corks in them. (Unfortunately, they are not at the lowest point, so they are useless for draining purposes.)
For the big holes you could fit deck plates (inspection ports).
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