iceboating.net Minnesota Ice Sailing Association

With the clamps and weights removed all the patches looked good. After some "quality time" making dust with the dual-action sander everything was smooth and (mostly) level. The next step was to mix up some epoxy and get it worked into some places where the bottom skin had broken away from the sideboard and some other small cracks. Next, I had to fill the large gouge that ran through the sideboard. The first step was to mix up a little putty-consistency epoxy (lots of "High Density" and Silica) to fill the bottom of the hole so the the rest of the filler wouldn't just run down into the boat. The rest of the gouge was filled with peanut-butter consistency "High Density" filled epoxy. The final step was to wet-out a length of fiberglass and lay it over the edge where the bottom-skin plywood was ground away to bond the sideboard and bottom together. That was probably overkill, but I don't think the extra couple of ounces will be a problem.

More photos at the Nordhaus Boatwerks page at IceBoat.org

After all the work the bottom looks almost ready for hardware.

The bottom skin is ground off over most of the sideboard width. The patches look pretty good...

A little final sanding and the hull-plates should fit perfectly.