PFAS Wax in Competitive and Recreational Skiing
Fluorinated ski wax — applied to ski bases to reduce friction on snow — has long been used in competitive Nordic and alpine skiing for its water-repellent properties that maintain speed across varying snow temperatures and moisture conditions. These fluorinated waxes contain PFAS compounds that have been found to contaminate snow, water, and soil at ski areas and in training environments. Wax technicians and competitive skiers who apply and are exposed to these waxes face direct dermal and inhalation exposure.
FIS Ban on Fluorinated Wax
The International Ski Federation (FIS) banned fluorinated ski wax in competition starting with the 2023-24 season, ending decades of performance advantage from PFAS-based waxes in elite competition. The ban was driven by environmental contamination evidence from ski venues and growing regulatory restrictions on PFAS use in several European countries where competitive skiing is popular. Enforcement involves on-site wax testing with portable detection equipment at competition venues.
Environmental Contamination from Ski Areas
Research at Nordic ski venues in Scandinavia has found PFAS contamination in soil, water, and vegetation near tracks where fluorinated wax has been applied over many seasons. Snowmelt carries PFAS from waxed ski surfaces into soils and waterways. Some ski area water bodies have been found with PFAS levels of concern for aquatic ecosystems. The full extent of ski area PFAS contamination nationally and globally has not been comprehensively characterized, but the evidence is sufficient to have motivated the international competition ban.
Recreational Skiing After the Ban
Recreational skiers using fluorinated wax for non-competitive purposes contribute to ongoing PFAS environmental loading from ski areas. While the FIS ban eliminates PFAS wax at sanctioned events, recreational use in training and non-competitive skiing remains. Ski manufacturers and wax producers have accelerated development of high-performance PFAS-free wax alternatives for recreational use. For recreational skiers with primarily weekend skiing, the performance difference between fluorinated and fluorine-free wax is modest under most snow conditions, while the environmental benefit of switching is meaningful.