The gunnels on my new to me skiff have some weak spots. As I started on them with the grinder, I learned that the weakspots were a previous repair where some one had filled softspots with bondo. Bondo is not waterproof and promptly rotted.
I ground out all of the weakspots and filled them with epoxy thickened with wood flour and 1/4 inch fiber glass chop.
I'll post a pic of the filled holes tomorrow or so.
--EDITED TO ADD--
After the epoxy cured I knocked down the high spots with the sure form.
Epoxy filled with 1/4" chopped fiber does not go on real smooth, but it does go in very strong. I will have to fair this all out and clean it up. Tomorrow.
new work
5 weeks ago