The birth of rubber foam: The earliest form of rubber foam was in 1929, when Eric Owen, a chemist working for Durup Rubber Company, whipped latex in the same way as you made cream for sponge cake. Soon after, the value of what we call polymer foam plastics was reflected, and innovation began to prevail.
Advantages of EVA sole: The sole is made of EVA material. The sole has high elasticity and tension resistance, high toughness, good shock absorption and buffering performance, excellent heat insulation, cold insulation and low-temperature performance, and can withstand severe cold and exposure to sunlight. It has a closed bubble structure, does not absorb water, is moisture-proof, has good water resistance, and is resistant to chemical corrosion such as oil, acid, alkali, etc. It is antibacterial, non-toxic, odorless, and pollution-free.
Types of rubber foam soles: When we look at a pair of shoes, they are likely to contain two different types of foam - open cell foam and closed cell foam. The nature of each foam can vary widely according to the basic ingredients, which can be mixed in different proportions.
