Swix Pro Polar WaxTemperature: Air 14C 32C (7F to 26F) A wax for extreme cold conditions, which can perfectly be used alone as a race wax when the air humidity is low. It performs very well on artificial snow and has a great durability. The speed of the iron should be approx. 8 10 sec. on a skating or alpine ski. The wax can be re heated after cooling to room temperature (10 min) for better durability. Scraping after appr. one minute. It's important to have a good iron