Rex N-Kinetic Liquids are fluoro-free race top coats are designed to replace powders using Level 4 N-Kinetic tech. They are best used in dry to moist snow conditions with a cold temperature range, -4°C and -20°C. Apply to a waxed and brushed ski and let set for 30 minutes before brushing with a finishing brush. N-Kinetic Level 4 technology is the fluoro-free answer to pure fluoro toppers. They have excellent gliding and dirt repelling properties while increasing acceleration and top speed!