1. To protect the coating of leather and PU institute leather against water, detergent, chemicals and high temperature;2. To enhance the water resistance, alcohol resistance, detergent resistance,chemical resistance and well as antifraying quality of water-based parquetry paint;3. To improve the quality of the water-based industrial paint to resist water, alcohol and bond;4. In ethenoid resins coating to reduce the mobility of plasticizer and enhancing fouling resistance;5. To reinforce the durability of seal-off glue in the water-based cement;6. To improve the cohesion of hydrated materials on nonporous ground materials;7. To strengthen the durability of solvent type polymer;8. To preserve the water-based color ink against water and detergent;9. To consolidate the resistance of water-based printing size coating against water, bond and high temperature.