The resistance and the quality of the steel, strengthened by an inner core in vulcanised EPDM, make the Projoint Dil STI/ floor expansion joint ideal for laying sections of mortar floors. The product has a metal structure able to easily withstand pedestrian and vehicle traffic (fork-lift trucks, pallet trucks and motor vehicles, etc.). These properties make Projoint Dil STI/ the ideal solution to finish and strengthen areas subject to frequent passing loads.