Hydrocarbon wax for use in very cold, dry conditions. Can be mixed with other hydrocarbon waxes to increase durability on ice and aggressive, man-made snow.

Swix CH4 is slightly harder than Swix HF4 and LF4. In dry conditions can it be used up to 23F (-5C). Recommended to scrape while still warm, as it becomes very hard to work when cooled to room temperature.