The 5 series is the hardest wax in the TSB line, and is a great choice in cold conditions, both for alpine and cross country. It is loved by servicemen, due to its great durability and properties when the snow is dirty. This is achieved thanks to the black solid lubricant additive that also reduces friction when very cold snow. Despite being a wax for cold conditions, the melting point makes it easier to apply than many competitors in this area, without sacrificing the great glide properties. 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. Scraping after approx. one minute. Important to have a good iron to get an efficient melting of the wax. TS5B can be used as a race wax alone or as a base for top coats. Recommended iron temp.: 160°C (320°F)