Temperature: Transformed fine grained snow and old snow from -1°C to -22°C (30°F to -7°F)A durable basewax for all hard waxes in colder conditions than -1°C (30°F). To be used when the snow has been transformed (granular) and the wear on the wax is high. Rub on and iron in with a waxing iron (110°C/230°F). Cork smooth. Base wax is much easier to apply when it is cold.