EVA emulsion and VAE emulsion describe the same copolymer material. EVA can be manufactured into solid or liquid forms, determined by its vinyl acetate (VA) content.
The solid form is called EVA resin, and the liquid form is an emulsion. To avoid confusion in industry communication, the emulsion version is widely named VAE emulsion. Chemically they are the same copolymer, so many industry professionals still adopt consistent naming: solid products are EVA resin, and the emulsion is also casually called EVA emulsion.
Ethylene-vinyl acetate copolymer is one of the most important ethylene copolymers. Globally, these materials are generally collectively referred to as EVA.
In the Chinese market, classification standards are defined by vinyl acetate content, dividing ethylene-vinyl acetate copolymers into three types: EVA resin, EVA rubber and VAE emulsion.
- VA content below 40% → EVA resin
- VA content from 40% to 70%
Materials in this range are extremely soft and elastic, often named EVA rubber. - VA content between 70% and 95%
Products are usually supplied in emulsion state, known as VAE emulsion. VAE emulsion has a milky white or light yellow appearance.
