What Is Redispersible Polymer Powder (RDP)? 1.1 Definition and Physical Form Redispersible Polymer Powder is a free-flowing white powder produced by spray-drying specially formulated polymer emulsions (such as vinyl acetate-ethylene copolymer emulsion). Its invention ingeniously combines the high performance of liquid polymers with the logistical convenience of a dry, powder-form material. 1.2...