The new Formula of Swix PS Polar is an excellent option when conditions are extremely cold with low humidity. PS Polar is great on artificial snow and can be used as a standalone wax when conditions call for it. This new mixture of PS Polar is now Fluorocarbon Free to protect the environment, and is actually faster than the previous CHX4. 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. Scraping after about one minute. In the warmer part of the temperature range, and when high air humidity, a powder or other top coat product will increase the performance. Recommended iron temp: 155C (311F). A great wax for extra cold conditions, that has high durability on aggressive snow and excellent dry friction properties., A wax for extreme cold conditions, which can perfectly be used alone as a race wax when the air humidity is low., Replaces CHX4, Recommended iron temp: 155C (311F)., Now Fluorocarbon Free-Better for the environment, without sacrificing any speed., In the warmer part of the temperature range, and when high air humidity, a powder or other top coat product will increase the performance., It's important to have a good iron to get an efficient melting of the wax., Snow Temperature: Extreme Cold, Actual Temperature Range: -14C/-32C, Wax Form: Block, Composition: Fluoro Free, Size: 180g, Model Year: 2022, Product ID: 620508, Model Number: PSP-18, GTIN: 7045952548487