Product InfoFor training and competition, the Swix PS Wax 60g will provide you with great gliding properties all season long. The Performance Speed Series needs an eight to 10 second ironing speed. You may reheat the wax after waiting approximately 10 minutes to get added durability. Scrape off after one minute, and you're good to go.PS5 is the hardest wax in the line that works best in cold conditions. For both alpine and cross country skiing, this wax is ideal in fresh, old or manmade snow. The recommended iron temperature is 160 degrees C (311 degrees F); and the recommended temperature range for use is -10 to -18 degrees C (14 to 0 degrees F).PS6 works in numerous ways. From a base for powder to a racing wax to a base prep wax for cold skis, the Performance Speed 6 will deliver. This wax works best on natural and artificial snow. The recommended iron temperature is 145 degrees C (293 degrees F); and the recommended temperature range for use is -6 to -12 degrees C (21 to 10 degrees F).PS7 is your all-round, go-to choice for alpine or cross country skiing in normal winter conditions below the freezing point. It is versatile enough to even be used as a training wax, racing wax or base prep wax. The recommended iron temperature is 140 degrees C (284 degrees F); and the recommended temperature range of use is -2 to -8 degrees C (28 to 18 degrees F).PS8 is easy to melt and convenient to work with, making it a solid choice for your training or racing skis this winter. The Performance Speed 8 can even work as a base prep wax for warmer skis. The recommended iron temperature is 130 degrees C (266 degrees F); and the recommended temperature range of use is -4 to 4 degrees C (25 to 39 degrees F).