Barium sulfate paint

Barium sulfate has its chemical formula BaSO4. It is colorless or white orthorhombic crystals with relative molecular mass of 233.4, the relative density of 4.5 (15 ℃), the melting point of 1580 ℃, and the Refractive index of 1.637. Upon being heated to 1149 ℃, it will become monoclinic crystalline when the refractive index is 1.649. It is almost insoluble in water with the solubility being 0.00022 at 18 ℃ and 0.0041 at 100 ℃. It is slightly soluble in concentrated sulfuric acid and soluble in carbonate alkali metal solution in which it is converted to barium carbonate; it is insoluble in other kinds of acid or base. In nature, it is existed in the barite mineral form.

Barium sulfate as an extender pigment is widely used in coating, to improve the coating thickness, wear resistance, water resistance, heat resistance, surface hardness, impact resistance and other plays a very important role. In addition, barium sulfate with high reflectivity in wavelength 300-400 microns range, can protect film from light aging. It is an effective and inexpensive white inorganic light stabilizer.

Made through a special process of superfine barium sulfate has a lot of characteristics which other similar products do not have. The acicular crystal structure makes it a good smoothing agent, and can enhance the coating property, it can be used in the cleaning type as strengthening agent in the coating; Because of its low oil absorption and high degree of filling amount, so can make the coating cost reduction, can be used in waterborne coatings, primer and intermediate coating, oil paint, etc.

Precipitated barium sulfate used in powder coating with high gloss, good flowing property, strong weather resistance, chemical stability and other characteristics. The products be used as the material of ink /painting /plastic /pigment /cosmetics /advertising /battery, both as a filler in the rubber products, and reinforcing role, poly (ethyl chloride resin as filling agent and weight gain agent, impression and bond paper surface coating agent, textile sizing agent; Also can be used as clarifying agent, defoaming and increase luster effect in glass, and as anti radiation protection wall.

BaSO4 filler is also used in ceramic, enamel, spices and pigments and other industries. It is also can be maked to other barium salt of raw materials, powder coating, paint, ordnance equipment, Marine primer paint, automobile paint, latex paint, exterior architectural coatings, can improve the product light fastness, weather resistance, chemical and electrochemical corrosion resistance and decorative effect, enhance the impact strength of the coating.