ROSF-PR73 is a styrene-acrylic ester copolymer characterized by a small particle size, superior film-forming properties, and excellent water and alkali resistance. It is an environmentally friendly product and contains no APEO. 

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Specifically designed for primer coatings, it can be modified with functional groups for application on partially cured concrete surfaces. It offers outstanding sealing capabilities, alkali resistance, and adhesion. 

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PR73 was specifically developed to meet high-performance primer standards. Utilizing advanced functional group modification, it offers the following benefits: 

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• Versatile Application: Can be applied to damp or partially cured concrete surfaces. 
   

• Superior Protection: Provides excellent sealing and alkali resistance. 
   

• High Durability: Features outstanding adhesion and water resistance performance.