What material is the pu sole made of?

Polyurethane (PU) began to be used as shoe sole material in the 1970s.

The main advantages of PU are that it is hard, flexible, durable, and elastic over a wide density range. PU, also known as polyurethane, originated in Germany during World War II. PU is an environmentally friendly material and is easy to hydrolyze.

Among the polyurethane coating production and processing enterprises, those responsible for the research, development and application of polyurethane coatings are mostly concentrated in the Pearl River Delta and Yangtze River Delta regions. So far, more than 60 varieties of polyurethane coatings have been developed.

Polyurethane foam:

Polyurethane foam is divided into two types: hard foam and soft foam. It has excellent elasticity, elongation, compressive strength and softness, as well as good chemical properties. stability.

The production of polyurethane materials has spread throughout North America. It is reported that the overall average annual growth rate of the North American polyurethane foam market is expected to reach about 6%.