Characteristics of acoustic tiles with polyurethane II

Polyurethane has an excellent acoustic performance and is injected with a density of 35 to 39 kg / m3. It has a coefficient of thermal conductivity of k = 0.016 kcal / mh ° C. Its characteristic is to be retardant in the action of flames and does not absorb water. When the subject is sound, the first analysis to be made refers to the mass of each product and by comparing the density observe that the polyurethane is much higher.