11-037 InsulBloc® SmartSPF is a two component, self-adhering, seamless, closed cell, spray applied polyurethane foam insulation system. This system has been formulated with highly insulating HFO as the blowing agent. The InsulBloc® SmartSPF insulation system is suitable for application on the exterior or interior side of Type I, II, III, IV, & V buildings and ABAA specified designs as well as other insulation applications.