A new cold wax with nano technology specially developed for dry friction conditions. The advantage of fluor in these temperatures is most present when the air humidity is high, meaning above 80 %. The speed of the iron should be approx. 8-10 sec. on a skating ski. Recommended iron temp is 155°C (311°F). The wax can be re-heated after cooling to room temperature (10 min) for better durability. Scraping after appr. one minute. Important to have a good iron to get an efficient melting of the wax. HF04X can be used as a race wax alone or as a base for Cera F powder, such as FC04X.