Density

Density in polyurethanes refers to the mass of the material per unit volume, directly affecting properties such as strength, stiffness and thermal insulation. In foams, a higher density indicates less air and more polymeric material, resulting in higher strength and lower insulation capacity. Manipulation of density allows the development of products tailored to specific needs, from lightweight insulators to robust structural components. By adjusting the formulation, materials ranging from highly flexible foams to solid polyurethanes with high structural loading can be produced.