Ekoprodur S0541 is a two-component system for the production of rigid closed-cell foam with self-extinguishing properties. The foam’s excellent insulating properties have been achieved through the use of HFO – a fourth-generation foaming agent from the group of hydro-fluoroolefins with a low greenhouse effect potential GWP = 1 and zero ozone-depleting potential ODP = 0. Used mainly as external insulation and for sealing flat roofs.