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Rubber: used in the outsoles of various sports shoes; advantages: good wear resistance, anti-slip, elastic, not easy to break, good softness, good extensibility, stable shrinkage, good hardness, and good bending. Disadvantages: heavy weight, easy to spit out frost
PU: Polymer polyurethane synthetic material, often used in the midsoles of basketball and tennis shoes, and can also be directly used in the outsoles of casual shoes. Advantages: high density, hardness, wear resistance, good elasticity, good oxidation resistance, easy corrosion, environmental protection, and not easy to wrinkle. Disadvantages: strong water absorption, easy to turn yellow, easy to break, poor elongation, not resistant to water, easy to rot at the bottom.
EVA: vinyl acetate copolymer, polymer material. Commonly used in the midsoles of jogging, jogging, casual shoes, and foot training shoes. Advantages: light, elastic, flexible, not easy to wrinkle, has excellent colorability, and is suitable for various climates. Disadvantages: easy to absorb water, not easy to corrode, not environmentally friendly, easy to get dirty.
PHYLON (MD): It is an EVA secondary high-pressure molded product. It is the main material for the midsoles of running shoes, tennis shoes, and basketball shoes internationally. It can also be used for the outsole of casual shoes. Advantages: light, elastic, thin appearance, good softness. Easy to clean, good hardness, density, tensile strength, tearing and elongation. Disadvantages: It is not easy to corrode and is not environmentally friendly. It is easy to wrinkle and shrink at high temperatures.
TPR: TPR granules are hot-melted and then injection molded. It is often used for midsoles and outsoles of jogging, jogging, and casual shoes. Advantages: easy to shape and cheap. Disadvantages: heavy material, poor abrasion (not wear-resistant), poor softness, poor flexibility (not resistant to folding), poor shock-absorbing ability
Performance comparison: TPR has a large specific proportion, is heavy, has average elasticity and average wear resistance. Rubber soles also have a larger specific gravity, but are softer, very wear-resistant, have strong grip, but have poor elasticity. They are generally used in indoor football shoes and casual shoes. The EVA bottom is very light and elastic, but the elasticity decreases after being worn for a long time and becomes more solid. PU and MD soles are elastic and durable without deformation. They are more flexible and comfortable during exercise. They have small specific gravity and are very light, so they are widely used (PU is denser than MD and has better shock absorption effect, but it is also relatively heavier). Generally large The bottom sheet is made of rubber, which is wear-resistant and non-slip.
We have nearly 20 years of experience in the footwear industry to ensure that every product is of the best quality. We will provide soles of different materials according to your needs and control every process.
