Re-Dispersible Polymer Powder(RDP, VAE) is the powder form of a special emulsion (macromolecular polymers) after spraying and drying. It’s also called dry powder glue. It dissolves in water easily and quickly forms emulsion, the same with the original emulsion. The membrane will form after the moisture is evaporated, this kind of membrane possesses high flexibility, good climate resistance and high adhesive to various substrates.