From what I read, Coosa and Baltek are closed cell, so the only retention of water would be at a cut, where the cells have been compromised.

Work schedule got messed up so came home for a couple days before I have to leave again. Did a lot of sanding on the inner hull sides in preparation for the divinycell however I first started closing in the holes from the forward vents and all other hull penetrations so I have a blank slate to start with.

Also helped my brother fix the deathtrap that was the rear storage boxes on his '72 22 Mako. The inside lip that the hatch lid sat on was so broken and we have had people fall in the box countless times. So we put a new inside lip using cut off scraps of coosa from my build as well as filling some old screw holes and some minor glass work on the side of the cap. This boat will most likely be going completely under the knife after we finish mine so just putting band aids on bullet holes for now.

any estimate on how much fiberglass you went through? getting ready to start a project and wasn't sure how much to get to start.

I bought a full roll of 1708 think it’s about 50 yards and I’ve used maybe a quarter of it. But what I’ve used most I bought roughly 50 yard rolls of 6” 12” and 17” 1708 “tape” which I’ve used the whole roll of 6” and two rolls of 12”. The 17” roll I’ve probably used half of it. Also have been through about 40 gallons of resin.

Little update just about 90% done with the hull coring with 1/2” Divinycell. Laid down a layer 1.5 oz CSM on the whole inside of the gunnel and stuck the Divinycell in it. Worked very well. Now going to go over it with probably two layers of CSM maybe a layer of 1708 inbetween the two top layers of CSM but that might be overkill. Very pleased with how it came out so far.

It has been a while since I've updated. Been busy with work, bought another boat, parents sold their house, crazy times.

All divinycell hull coring is glassed over and done.
Outside of transom is done.
Stern vent holes closed.
Front block for tow eye is 2" of Coosa and glassed in.
Next is bottom pieces for fuel tank, insulate fwd fishbox, and running pipes for rigging, fuel lines, fishbox drain, etc.

Here is what I took out from where the tow eye was and the Coosa one I made.

I'm about to dig into my bow eye! That's a lot of work on the hull sides, well done! I'm still jealous of your tent!

Had to move the rig (and the tent too) because our house is sold.
Can see the transom progress. Think it ended up being 9 layers on the outside wrapped around the sides and bottom. Inside has 6 layers. Should be sealed and secure as that’s the only wood in the whole boat.