Is Polyurathane Surface Hardness Enough?

Although we have productions with 180 kg/m3 intensity and with the value of Shore D30 surface hardness in standart products, our isolation wall panels are produced in the intensity of 160 Kg/m3 and in the value of Shore D 40. And also in custom manifecturing it may increase up to 1200 kg/m3 density and Shore D 80-85 surface hardness.