Salomon Zero skis are optimal when it is snowing wet and heavy snow and when there are large fluctuations in temperature. In these conditions the zero skis provide kick while normal kick wax ices up resulting in slippery skis.
Zero skis are produced with a rubber inlay in the wax pocket zone that needs to be prepared before skiing. Rubbing the base of the ski makes the hairs, which lie in the base material, stand up. These standing hairs provide the grip needed for wet/zero snow conditions. Coarser rubs will be required for more humid snow, i.e. wet, heavy snow. Finer rubs are used for aggressive snow, i.e. snow with lower humidity.
The rubbed area stays ice free by corking in silicone or fluoro powders. Glide zones must be waxed like for a normal classic ski.
Rubber inlay in the wax packet zone of the Salomon Zero classic skis
What you need:
If, when you try your ski they are sticky, the kick can be mellowed by using a finer sand paper (4 or 5 passes). If you need more kick, use a slightly coarser sand paper in the center of the kick zone.
This method allows you to adjust your kick as you would with traditional kick wax.
Ivan Babikov won the 2008 Canadian National Championships 50km race on Salomon Zeros.
Local sources of Salomon skis: