Domestic and foreign advanced production technology and pure physical and chemical processing methods have been used in selected barite superfine processing to produce extinction barium sulfate, which endows the barium sulfate several special functions as follows:

    1 Bright colors: With good dispersion, it plays the greatest hiding power; As pigment carrier, it disperses pigments and achieves uniform color at the same time; Its high whiteness makes colors more bright and pure; The micro crystal structure and high refractive index make color more rich and full.

     2 System stability: Good chemical inertness keeps the basic environment of various systems stable. Ultrafine particles have high surface energy and good compatibility. The organic composite of ultrafine particles and other materials can enhance binding force. Uniformly dispersed differential monomers stablely suspend in the system without producing flocculation or precipitation.

   3 Firm film: High density brings good wear resistance; The strong surface energy of ultrafine particles can make the combination of film and substrate more solid; Uniform superfine particles make the film more smooth, sturdy and durable.

    4 Excellent weather resistance: It has good chemical inertness, waterproofing, acid resistance, acid rain resistance, high temperature resistance and corrosion resistance; At the same time, it has special X-ray absorption function, which greatly improves the weatherability of coatings.