Black, -2C to -8C (28F to 18F). Easy application. Good dirt resistance. To be used on man-made snow or transformed snow, partly polluted. Used as a base for Swix Cera F FC7, FC78 and FC8X. Recommended iron temperature setting of 135C (275F). The Black Wolf contains solid lubricants as additives. This will give you an advantage during times of course grained snow, dirty snow, Man-made snow, and Dry Friction or extremely cold temperatures. The reduced friction has made it a staple for top ski techs on the World Cup Circuits.