The new Cera Nova CH8X's temperature range from -4degC to 4degC (25degF to 39degF). Recommended iron temp: 130degC (266degF). A continuation of the std. CH8. An economic training and racing wax as well as base prep wax for warm skis. Easy to melt and very convenient to work with. 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. Important to have a good iron to get an efficient melting of the wax.