^^ptex is for base repairs, nothing else ...
i'd make sure the ski is completely dry, store it inside for a day (or more) so most moisture will evaporate, then cut off the piece of edge (use strong wirecutters or a dremel tool), then gently hammer/bend the free end back into plac as good as you can and fill the removed part up with epoxy, use it royaly, let it cure 24h, then take a sharp knife and trim off the excess epoxy and that should do the trick :)
(with the same procedure you could also try bending the ripped out edge back into place but just cutting it off will make a stronger and more durable fix imho ....)