-2°C to -8°C (28°F to 18°F). PS7 is a wax that performs great in normal winter conditions below the freezing point. Its hardness makes it convenient to work with and easy to get a good end-result. PS7 is an economic training and racing wax as well as an all round base prep wax. Recommended iron temp: 140°C (284°F). Replaces the CH7X.