Swix HF8BWX Black Wolf 40g Black, +4C to -4C (34F to 25F). Performs extremely well on man-made snow or transformed natural snow as well as dirty snow due to resistance towards pollutants. Normally used as a base for Swix Cera F FC78 or FC8X. Recommended iron temperature setting of 120C (245F). The Black Wolf (BW) 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.