PUR – this means the polyurethane has been reinforced by applying a higher-weight, top-quality polyurethane, that has been UV-cured and cross-linked, to the product. The significant difference lies in the fact that a PUR floor should provide a polish/sealer-free maintenance regime for the life of the floor. It is important to note that this is very distinct from the promises made by manufacturers of a “maintenance-free” regime, as there is no such thing as a maintenance-free floor.