F4 Universal All Temperature Spray wax for skis and snowboards for all snow conditions. F4-150S has a sponge foam applicator for wax application. Apply a thin layer over the base. Let it dry for approx. 5 minutes. Finish by polishing with Fiberlene T0151 or Nylon Brush T0166B. Apply F4 to the metal edges before storing your skis or board after the season. This prevents the edges from rusting.