salmonkiller01

I just found out my transom is rotted and have started stripping her down for a rebuild. Gonna post pics as I go along. If someone has done this to a similar hull I am just wondering how much resin and matting I need.
I plan on using a poly resin, as thats what my boat is made from and i am not trying to start a Poly vs Epoxy thread.
What type of cloth will I need and roughly how much?
5 gallons of resin is enough??

I am using 2 layer of 3/4 marine plywood and one layer of 1/2 in marine ply as that is what was in there I think(she is pretty wet and swelled)

Thanks for any input as this is my first transom rebuild. Too bad I am away for the next week and will not be able to work on it, but I already de-rigged my outboard and cut out the back section of my inner liner.

Bird Rock

Bummer. How old is the hull?

No advice for you other than post on greatgrady.com for more help if you haven't already.

firetigertim

I rebuilt the transom on my '75 GW 204C last Feb. I used polyester resin (3 gallons), 10 yards of 1.5 oz mat, 4 containers of 5.5 oz. Cab-o-sil, 2 quarts of gel coat, and 10 yards of 24 oz woven roving. Looking back, I would have preferred 10 oz cloth instead of the 24 oz woven roving. My first time doing any major fiberglass work, ended up doing ok.

VeroWing

Here is a condensed step by step thread of the transom rebuild I did to my 22 Seafarer a few years back. BoatBuilderCentral uses it as a transom rebuild tuturial.

http://boatbuildercentral.com/howto/...pair/index.php


Here is the long version on their forum.

http://forums.bateau2.com/viewtopic.php?f=10&t=19949

jayyy

You mentioned your using poly resin, Grady White highly recommends Epoxy resin for this. If they used epoxy when they built your boat you probably wouldn't have this issue.

salmonkiller01

Well the transom is in, I used marine grade plywood, it was expensive at 130 a sheet but it is made out of mohagany and has no voids and many layers. Going to close in the transom for safety also.Couple of pics of my old transom on the ground in a pile and the stern all cleaned up

jonesg

BAloney.!

firetigertim

x2

MYALBIE

I too had a Grady 24 cc with a problem transom that someone fixed using a heavy
custom fabricated aluminium plate---seemed to be fine

Also, saw an article a couple years ago where they basically removed the material
from the inner and outer skin of the transom with some long sawzall blades etc
and then filled it with some type of resin or whatever---seemed like a neat way to do it!

cb_usmc

Ever thought of using seacast... A lot easier and is supposed to last forever