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Old 06-20-2013
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davidpm davidpm is offline
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Epoxy screws

I just did something that I'm hoping will work.

I have an old beater sailing dinghy I use as a tender that has been dragged across rocks and sand for a few years.

It has a skeg about on inch thick and four inches deep.
The gel coat on the bottom of the skeg has been rubbed off for some time but I figured the skeg was a solid piece of wood encapsulated in glass so I didn't worry about it too much.

I was wrong the skeg shape is molded fiberglass no thicker than the rest of the boat.
If finally wore though and started to leak.
I glassed it up and figured I could glue a piece of aluminum to the bottom for protection. I bought 5200 but rather than wasting a tube of the expensive stuff I tried something else.

I drilled a few holes in the aluminum strap and counter sunk them just as if I was going to screw it on with flat head screws.
I then bedded the strap in thickened epoxy including the screw holes.
This makes an epoxy flat head screw which I hope will mechanically help the strap stay attached to the bottom.

I'll keep an eye on it.
Worst that will happen is that it will fall off.
The lesson from the Icarus story is not about human failing.
It is a lesson about the limitations of wax as an adhesive.
If you have an engineering problem solve it.
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