SprayFoam.com (press release) | Dow Insulation and Sealing Technologies Help Increase Operational Efficiency and Maintain Temperature Consistency ... SprayFoam.com (press release) PIR (polyisocyanurate) panels incorporating Dow's PAPI™ Polymeric MDI are used to insulate the walls and roofs. These panels have excellent thermal insulation properties which will help protect against cold weather during the event and help increase ... |