poly MDI M20S is the same as PM200 and 44v20L,it is widely used for PU rigid foam for insulation,shoe,mattress,freezer and so on Product brands:M20SManufacturer: D.BasfSpecifications Appearanceviscosity(25°C)-NCO(%Wt)Density(25°C)g/cm3Acid value(ppm,HCI)Hydrolysis chlorine(%)Brown liquid160~24030.5~32.5/≤200/ApplicationsM20S can be widely used in the production of PU rigid insulation foams and ...