1. Food industry: used as thickener, emulsifier, stabilizer, nutritional protein additive, surfactant, sweetener, humectant;

2. It is used as a base material for coatings. It has excellent water resistance and can be well dispersed in pigments to improve the uniformity of coatings;

3. Compared with other resin buttons, casein buttons have good dyeability, processability, and various colors;

4. It mixed with slaked lime, sodium fluoride, and copper sulfate to obtain casein glue used in the aviation industry and wood processing;

5. It can also be used as a substitute for plant-based whey protein in making plant-based cheese, yogurt, ice cream and other dairy products.