The base should be prepared with a layer of wax prior to the upcoming summer break so it has optimum protection against outside influences.
Before the wax is applied you should remove any dirt, dust and old pieces of wax from the base. Here you can use cleaners (wax removers) which are available from sports retailers. Before you do anything else the skis should air outside for at least 15 minutes. Next, apply a universal glide wax (wax should be as soft as possible) with a waxing iron and, depending on the hardness of the wax, iron it on at a temperature between 110°C (230°F) and 130°C (266°F) evenly and in the direction of skiing. IMPORTANT: do not leave the iron in one position for too long (risk of overheating). For cross country skis, make sure that there is no glide wax on the climbing zone with classic and skis with climbing sections. The glide wax that is applied must not be scraped off, it remains on the ski. During the summer break the skis should be stored horizontally with the bindings facing downwards at a constant temperature in a room which is as dark and dry as possible.
Just before the season starts all you have to do is scrape off the wax.