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Kind of a good idea I thought of
Either this would work really well or not at all. I think it would work though. To truly minimize the amount of water getting into a binding hole, I think it would work if you had little rubber gaskets that you put on the topsheet of the ski before you mounted bindings. Pretty much the binding would clamp itself down onto the gasket, and the gasket would keep all water out of the binding hole if it sealed well enough with the baseplate of the binding.
I feel like this would work better than just standard epoxy or wood glue, because when the ski flexes a lot (softer park skis) the material in the binding hole can just crack under pressure and then it can deem itself useless while water gets in and rots the hole out. But if you had a rubber gasket with the ID the diameter of the binding hole, and the OD the diameter of that +5-10 mm, it would pretty much seal the hole off and keep all moisture out.
If the right epoxy is used then it would be way better than rubber. Epoxy would fill every every little gap if done right where rubber wouldn't. Plus rubber would eventually degrade.
They make screws with a thin layer of rubber on them (think like plumbers tape but already on the screw) but I don’t know if they make binding screws with i.
For a gasket to work you also need to have an appropriate surface on the binding for them to seal against. Some bindings have a continuous cutout spanning two screw holes (i.e the front 2 on pivot heelpiece) which make this less effective.
You could probably use silicone from the hardware store, but I like your idea of a gasket.
Edit: how common is it for water to get in the holes? This would have to be something that is adopted in every/most skis for it to be a profitable idea.
**This post was edited on Feb 18th 2021 at 5:01:55am
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