Ideas are getting confused in this thread.
I am from the UK and as such i spend 75% of the year riding on artificial snow surfaces and have plenty of experience of base deteriation & burn from this type of surface.
the only way to stop the deterioration of any base material is wax and for riding on plastic you need the hardest wax you can get. to protect against the rough plastic bristles.
the best is dry slope specific wax but a very low temp wax will do way more good than others if you cant get a specific.
more water on your set up will also reduce damage but the fact is skis are made for snow and aren't made for sliding on a rough plastic surface.
after a day or so riding on dryslope/ 8 hours ride, you will need to reapply wax or it will eat away at your base material and you will end up with bases at a different height from your edges and will need a serious base grind to get it back to normal.
as a general rule if your going to be riding on artificial surface regularly use and old pair of skis or a pair which you only use on a summer set up or whatever. I've got skis which have had 4 seasons of mixed use on them and i am having to only use them on dryslope now as the bases have become so slow and don't hold wax despite regularly waxing them for their whole usage life. /half-cut rant
