I’m still feeling sick today, I was supposed to go cross country skiing today but my body would not have enjoyed it much. So I’m back in the boat shed.
My hot box worked well and the epoxy seems to have set well on the garboard scarfs.
There was just a little squeeze out that was easy to sand smooth. This certainly builds confidence as I now know my procedures seem to work well. Six more pairs of strakes to go or twenty four more scarfs to glue.
Ian Outghtred’s instructions say to glue the scarfs for the second strake as you are laying them down on the garboards as their is quite a lot of twist at the forefoot of the strakes.
So I’m leaving #2 for now and moving on to number 3 strakes.
There’s have quite a bit more curve than the garboards.
I coated the scarfs with clear epoxy to let it soak in the fibers before adding a bonding filler to the epoxy and applying more.
Some squeeze out lets me know that there are no voids.
I then clamped them down with a board and a few drywall screws.
Today despite a nasty cold that was keeping me from thinking straight for the last couple days I managed to get out of the house.
As it is winter and my West System hardener 205 is recommended to be used above 4 degrees Celsius I needed to devise a portable hot box to help keep the temperature slightly warmer and ensure that the epoxy gets a chance to kick. I came up with a design that should accommodate most of the glueing of scarfs, the laminating of the stems, centreboard and rudder.
I built a 32″x60″ frame wrapped in foil backed bubble wrap.
The scarfs once glued and covered by wax paper I clamped down with a block of plywood and some screws. We’ll see how it set tomorrow.
Then with a 75w bulb as the heat source mounted inside I placed the hot box over the glued scarfs to set overnight. The access hole just gets covered by a piece of plywood.
With some luck it will set nicely and I’ll be able to repeat the process for the other six pairs of strakes.
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