Swix LF6X has been one of the greatest successes in the old Cera Nova system, and through comprehensive testing we haven't found anything better. This wax is very versatile. Its area of use stretches from underlayer for Cera F powder, racing wax and base prep wax for cold skis. LF06X has a good durability and offers great performance on artificial snow. 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. Swix LF6X Wax - 60g: Temperature range from -5C to -10C (23F to 14F). Recommended iron temp: 145C (293F).