How crucial is it to epoxy sidewalls to core pre-layup?

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Danielbroski
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Joined: Tue Jan 01, 2013 4:00 pm
Location: Boulder, CO

How crucial is it to epoxy sidewalls to core pre-layup?

Post by Danielbroski » Wed May 22, 2019 11:11 am

In the past I've always epoxied my UHMW sidewalls to my core before profiling the cores, after seeing that was a common way to do it. It has worked well, but it's a bit of a pain. I've seen a few companies (J skis and Folsom skis) who seem to just hold the sidewalls in place and let the layup adhere them to the ski. Any body have experience doing this?

Vostok61
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Joined: Sat Apr 20, 2019 10:13 am

Re: How crucial is it to epoxy sidewalls to core pre-layup?

Post by Vostok61 » Wed May 29, 2019 11:47 am

Are there things I should be paying attention for if I were to use epoxy in very warm weather or with salty, iodine-rich seaside air? The thing is that I was planning to buy one of these houses in Greece for the holidays, and work on skis there to go to winter sports resorts in Bulgaria, Montenegro etc later on.

mammuth
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Location: somewhere in the alps

Re: How crucial is it to epoxy sidewalls to core pre-layup?

Post by mammuth » Thu May 30, 2019 3:23 am

Danielbroski wrote:
Wed May 22, 2019 11:11 am
I've seen a few companies (J skis and Folsom skis) who seem to just hold the sidewalls in place and let the layup adhere them to the ski. Any body have experience doing this?
If you work with a mold and if you have profiled sidewalls you can do this approach, otherwise it will be difficult ;)
Tom

Cadman
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Location: Crystal Mountain, Washington

Re: How crucial is it to epoxy sidewalls to core pre-layup?

Post by Cadman » Mon Sep 23, 2019 10:05 am

We wet up the sidewalls along with the core and put them in the mold. We use a retention wall on the side of the cavity to hold the sidewalls in place. The clearance allows the glass to go up outside the sidewall and out of the mold which traps the sidewall. We keep the clearance so that it holds the sidewall up against the core but does not squeeze all the resin out where the sidewall meets the core. It seems to work fine.

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