The Swix HF6 recipe has proven to be too good to be dropped and is therefore continued as HF06X in the new Cera Nova X range. It's a very popular wax both in alpine and cross country and has shown good properties on artificial snow in addition to natural snow. Temperature range from -5C to -10C (23F to 14F). Recommended iron temp: 145C (293F). The speed of the iron should be approx. 8-10 sec. on a skating 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. HF06X can be used as a race wax alone, but is often used as a base for Cera F, such as FC06X and HVC Cold (FC60L).