There are lots of epoxy solutions out there that will work for some degree of time. I believe the problem with epoxy is #1 it is not meant to be flexed #2 some are not meant to get wet.
The key to doing a good repair with this stuff is a good bond, i.e. epoxy to the ski. Whatever surface you are trying to repair needs to be prepped before applying.
"You come to Utah on vacation and leave on probation" - James K.