80 Station PU Sole Making Machine

Polyurethane soles, popularly known as PU soles, are made from a new kind of organic polymer material. It has been hailed as the fifth big plastic, and is in the process of revolutionizing the shoe industry.The polyurethane is produced by reacting an isocyanate prepolymer, such as methylene diphenyl isocyanate, and a polyol component in the presence of heat and an organometallic catalyst.