Today was an excellent day for epoxy work! First I coated the exterior of the bow and stern with unthickened epoxy. Then I applied the pre-cut 6oz cloth to those 2 areas and finished wetting them out.
Within an hour, the epoxy had kicked and I was ready to apply the rubrails. The rubrails are 1x3 pine which I ripped down the center to creat rubrails 1 3/16 wide. After turning the boat over, I cut the rubrail to length. Then I held one up to the boat and marked on the rubrail where it passes over the frame. I marked that and drilled a hole through the rubrail and into the side/frame. I then screwed into that hole a 2" exterior decking screw. The screws purpose is to give me a starting point to bend the rubrail around the sheer so that I have at least one point firmly attached to the boat for when I start applying C-clamps. When I was happy with the location of the hole and the dry fit of the rubrail, I removed it, and coated the side touching the boat with Titebond 2 exterior wood glue. I also coated the part of the hull that the rubrail was to touch with Titebond 2. Then I fastened the rail to the boat with the screw in the frame and started applying clamps. After the clamps were all in place, I used 7/8" bronze ring nails to nail through the plywood into the rubrail from the inside of the boat. I put a nail in about every 3". Nailing to the side of the boat would normally be very aggravating, what with the hull bouncing around from all the hammering, so I used a backing iron consisting of a 12 lb steel dumbell held up to the rubrail at the spot where I was driving the nail in from the outside. Worked like a charm.
As to why did I use Titebond 2 instead of epoxy? A couple of reasons. 1, I was working by myself, 2 it was 80 some odd degrees and I all I had around the house for hardner was fast hardner. I figured by the time I would have the epoxy mixed, and spread, in this heat, I would have a problem getting the rail installed to my satisfaction. The Titebond 2, combined with the nails should be more than tough enough for this job.
In this pic, you can see the dumbell I used as a backing iron. And no, I didn't break it today....I did that some time ago....
And then I did the rail on the other side of the boat. At that point, most of my clamps were pressed into service on that side of the boat....
See the pointed pieces of plywood in the background? Tomorrow I will cut them up into strips about 2" wide and about 12" to 18" long. They will be used to create a mockup of the bulkheads I need to make for the floatation chambers.