Temperature:Air -4°C to +4°C (25°F to 39°F)A great wax for both base-prep and training. It can also be used as a race wax, preferably used with a top coat. Easy to melt and very convenient to work with.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. Recommended iron temp: 130°C (266°F).