After spray-drying, the polymer particles are often coated with a protective layer to enhance their stability and redispersibilityredispersible polymer powder manufacturing process. This is achieved by mixing the dried particles with a blend of surface modifiers, such as ethylene-vinyl acetate copolymer or vinyl acetate-ethylene copolymer, under high shear conditions. The coating process ensures that the polymer particles remain separate and do not agglomerate during storage, thereby maintaining their redispersibility.

In the pharmaceutical industry, HEC is used as a viscosity modifier in oral and topical medications. It can help to improve the flow properties of liquid formulations and enhance the stability of suspensions. Additionally, HEC is used as a binder in tablet formulations to help the tablets hold their shape and disintegrate properly when taken

hydroxyethylcellulose uses.