Barium sulfate — natural (N) is a high-purity inert filler for paints and coatings. The purity of BaSO₄ is ≥ 98.0 %, whiteness is ≥ 93 %, dispersity D50 is 4–8 µm, oil absorption is 9–14 g/100 g, and density is 4.4–4.5 g/cm³. Chemically, BaSO₄ is extremely stable and does not react with most organic solvents, acids or bases, which makes it especially suitable for epoxy, acrylic and polyurethane resin systems. As a filler it enhances opacity, improves resistance to ultraviolet radiation and reduces moisture permeability—key attributes for exterior coatings. In primers BaSO₄ provides excellent metal adhesion and increases the pigment loading capacity of emulsion systems. In enamels it is used to achieve matte or semi‑matte finishes, while in automotive coating formulations it lowers gloss and boosts chemical resistance to fuels and brake fluids. In powder coatings BaSO₄ serves as the primary inert component, allowing high coating density without compromising mechanical properties. For optimal performance the powder should be introduced as a well‑dispersed dry powder, pre‑mixed with the resin or solvent to avoid agglomeration. Typical dosage in standard paint formulations ranges from 10 % to 30 % of the total dry weight, depending on the desired optical density and mechanical strength. Global Optimals offers barium sulfate wholesale and retail sales in Uzbekistan.
| Чистота BaSO₄ | ≥ 98.0% |
| Белизна | ≥ 93% |
| Дисперсность | D50: 4–8 мкм |
| Маслоёмкость | 9–14 г/100г |
| Плотность | 4.4–4.5 г/см³ |
25 kg bags / 1000 kg big bags
Barium sulfate (N) should be stored in a dry, well‑ventilated area under typical warehouse conditions (approximately 20‑25 °C). Keep the packaging tightly sealed and protect it from moisture and direct sunlight to prevent agglomeration and property changes. When stored as recommended, the product generally retains its quality for 12–24 months. Handling requires the use of protective gloves and safety glasses, avoidance of dust inhalation, and, if necessary, local exhaust ventilation to control airborne particles.
