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Author Topic:   Transom Delamination

Smitty posted 06-17-2000 08:21 PM ET (US)
I have 1972 Katama that is seperating on transom on either side of the engine. The glass is peeling between the blue and the outside white gelcoat. The peeling is down about 1 1/2". Has anyone had similar problems? This boat is in perfect condition (never bottom painted or painted inside)and wold like it to look that way. I live in South Florida and would like it to see many more years!
KCarlsen posted 06-18-2000 07:52 PM ET (US)
Smitty, I had the same problem on my 1969 Nauset and this is how I fixed it. It would not squeeze back together using clamps so I drilled out some of the existing fiberglass with a drill and a dremel motor tool. When I had enough material removed so that I could join the two skins back together without a lot of pressure, I mixed up some west system epoxy and injected it into the crack and/or seperated skins. I did not add any filler to the epoxy because I wanted it to ooze into all the nooks and crannys. I then used two clamps protected with scraps of wood and squeezed the two sufaces back together, wiping up any that squeezed out. After it hardened, I sanded the top surface and used epoxy mixed with silica to give the final seam a smooth surface. This was two years ago and it has held together so far. Can't even tell it ever seperated. Don't know if this is the correct method, but it worked for me.
Smitty posted 06-19-2000 07:41 AM ET (US)
KCarlsen, thanks for the info! I talked to the dealer in the area yesterday and he informed me that this problem was probably caused when I replaced the drain tube about four years ago and did not let it dry out enough. Thanks again!
tarbaby posted 06-19-2000 11:07 AM ET (US)
My 76 mauntauk delaminated to one side of the engine and I did the same fix job. It looks like it never happened. The Dremel tool is a must!

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Author	Topic: Transom Delamination
Smitty	posted 06-17-2000 08:21 PM ET (US) I have 1972 Katama that is seperating on transom on either side of the engine. The glass is peeling between the blue and the outside white gelcoat. The peeling is down about 1 1/2". Has anyone had similar problems? This boat is in perfect condition (never bottom painted or painted inside)and wold like it to look that way. I live in South Florida and would like it to see many more years!
KCarlsen	posted 06-18-2000 07:52 PM ET (US) Smitty, I had the same problem on my 1969 Nauset and this is how I fixed it. It would not squeeze back together using clamps so I drilled out some of the existing fiberglass with a drill and a dremel motor tool. When I had enough material removed so that I could join the two skins back together without a lot of pressure, I mixed up some west system epoxy and injected it into the crack and/or seperated skins. I did not add any filler to the epoxy because I wanted it to ooze into all the nooks and crannys. I then used two clamps protected with scraps of wood and squeezed the two sufaces back together, wiping up any that squeezed out. After it hardened, I sanded the top surface and used epoxy mixed with silica to give the final seam a smooth surface. This was two years ago and it has held together so far. Can't even tell it ever seperated. Don't know if this is the correct method, but it worked for me.
Smitty	posted 06-19-2000 07:41 AM ET (US) KCarlsen, thanks for the info! I talked to the dealer in the area yesterday and he informed me that this problem was probably caused when I replaced the drain tube about four years ago and did not let it dry out enough. Thanks again!
tarbaby	posted 06-19-2000 11:07 AM ET (US) My 76 mauntauk delaminated to one side of the engine and I did the same fix job. It looks like it never happened. The Dremel tool is a must!