EVA material is a type of plastic. It is a copolymer of ethylene and vinyl acetate, chemically known as Ethylene Vinyl Acetate Copolymer.

EVA is widely used across various industries, with its global market demand growing steadily each year. It is especially prevalent in the footwear industry, where it is commonly used in the soles and inner components of mid- to high-end sneakers, hiking boots, slippers, and sandals.

When the vinyl acetate content in EVA is below 20%, it is suitable for use as a plastic. EVA exhibits good low-temperature resistance and has a relatively low thermal decomposition temperature of approximately 230°C.

As the molecular weight increases, EVA’s softening point rises, which may reduce processability and surface gloss in molded parts. However, this also results in greater strength, improved impact resistance, and enhanced environmental stress crack resistance. In terms of chemical and oil resistance, EVA performs slightly less effectively compared to polyethylene (PE) and polyvinyl chloride (PVC), and these properties become more pronounced as the vinyl acetate content increases.