Thanks for the link. I used the West System on the Cal 20,
and it worked great!

"John Cairns" wrote in message
...
All you need to know about patching FRP can be found here.
http://www.westsystem.com/
Real experts, not wannabes.
John Cairns
"Jonathan Ganz" wrote in message
...
I had an illegal head on my Cal 20. For that boat, I cut out the
fitting,
then somewhat closely matched a piece of wood to the hole. Then,
filled in the gaps with 5200, then glassed over the whole thing from
both sides. I don't know if that was the best way to do it, but it
doesn't leak and I suspect it's stronger than the rest of the hull.

Is there another method that's as or more effective?

Jonathan