Just as a side note: When I was getting a major home remodel done, there were several pieces of exterior trim that were partially rotted. The carpenter doing the work used good old Bondo to fill in the rotted spots and to build up some other areas. Then he just sanded it to shape, primed and painted. I asked about the Bondo, and he said he used to buy small cans of special wood putty, but he realized that it was just Bondo in a smaller can at a higher price. His sense of smell confirmed it. He's been using it on jobsites for 20 years and has never had a failure of any kind.
