Temperature range from 0°C to +15°C. Recommended iron temp.: 170°C. The strength of the FC10X powder is in wet conditions from 0°C and warmer. Used a lot during spring season with melting snow or falling wet snow. It performs well in all snow conditions. Suggested base waxes are HF10X, HF10BWX or LF10X. The speed of the iron should be approx. 4-6 sec. on a skating or alpine ski. It’s highly recommended to have a good iron when working with powders. The powder should be ironed once.