Swix Cera F FC10 Powder 30g Temperature range from 0C to +15C (32F to 59F). Recommended iron temp: 170C (338F). A continuation of FC010X which is performing to well to be dropped in the new line. The strength of the powder is in wet conditions from 0C 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.