To clarify, I'll bond in a fibreglass tube to seal the wood. Fibreglass tube as the poly resin doesn't bond well to plastic plumbing pipe.
Sectional drawing:
Exactly this. The 1708 has advantages and disadvantages over separate csm and cloth
You can wet it out easily and quickly with a squeedgy/spreader without tearing the csm, but it needs to be wetted out before applying otherwise it’ll be dry as you’ll struggle to get the resin through from the...
A few thoughts on a question asked that might be useful to someone else:
Hi Jeff,
Thanks for the compliments. Did another Searay about 10 years ago so knew what i was getting in to. This one was a lot better and probably could have been patch repaired but i wanted to do it properly once.
To...
Happy with the results of this weekend - stringers are glassed in.
Had to change plans a bit as I was planning to do the second layer as a single piece over the top and down both sides but trying handle 14 1/2’ long by 3 1/2’ wide of wet out 1708 on my own would have been too difficult...
Long evening, started at 6.30 and finished at 10.15.
Managed to do the whole transom in one hit. I used the gravicol for the filleting with csm to shape it followed by 2 layers of 1708 and a few patches of csm to help hold the 1708 down where i’d made relief cuts.
Used about 3 litres of resin...
I’d like to see that. I also like the idea of a complete cradle under the engine with the cradle sitting on top of the stringers/floor but not really necessary as it isn a race boat.
i‘ll either drill oversize holes and fill with PB or glass in fibreglass tube for the transom and engine mounts...
What make/age is yours. Original ones were 1/2” crap quality ply with a 1 1/2” x 3/4” cleat stapled on before the chopper gun, pretty standard for Sea Rays of that era.
these are 3/4” marine ply enclosed in 1708 and will have the cleat added after glassing th stringers in
Bit more done - stringers are in place. I started by getting them in the right position and height and added temporary cross members to hold them the right distance apart and square. Main reason for this approach is to tie the transom and stringers together as a single structure and to use the...
Cheers for the compliment.
I considered epoxy but on the advice of a naval architect went for poly as more than good enough. I could afford it (epoxy’s nearly 4 times more expensive here) but think if the lamination is done properly plus gel coat to seal the surfaces it’ll be okay. Plus, I...
