Just found a site that is touting Clear Marine Goop for repairing rotomolded boats. Sounds almost to good to be true, but at least not expensive.

http://www.ozarkcanoe.com/CanoeRepai...epartment.html

You may have to cut and paste the link. My tiny URL maker isn't working

Another person mentioned a West Marine product called G-flex epoxy. It has been reported to do a good job.
Some of the kayakers I've talked to have simply said rotomolded boats can't be repaired, but others claim to have repaired them.
Guess it is about time to bite the bullet and try something.
thanks for the information.

RodgerO.