Swissvax Shield is an innovative wax formula from Swissvax that is fortified with polytetrafluoroethylene (PTFE). This is the same material used to coat non-stick kitchenware, and in automotive applications its use imparts a similar non-stick effect that results in fewer contaminants adhering to treated bodywork. As a result, treated cars are able to better withstand the elements for many months at a time, and are easier to wash and maintain in between treatments. Swissvax Shield is thus an excellent choice of protection for use on vehicles that are regularly driven in harsh conditions, i.e. off road, or are regularly exposed to corrosive contaminants, such as road salt.