Precipitated Barium Sulfate Filler for Plastic & Rubber Performance.

Product Overview

Our Precipitated Barium Sulfate (BaSO₄) is a premium-quality white powder renowned for its exceptional chemical stability and high refractive index. Widely used as a functional filler and performance enhancer across multiple industries.

Technical Specifications

✅ Chemical Formula: BaSO₄
✅ Purity: ≥98%
✅ Appearance: Ultra-fine white powder
✅ Particle Size: 0.5-10μm (customizable)
✅ Oil Absorption: 10-15g/100g
✅ Refractive Index: 1.64
✅ pH Value: 6.5-8.5
✅ Packaging: 25kg/bag or bulk

Precipitated Barium Sulfate, manufactured through chemical synthesis, is a high-grade functional filler used to enhance the properties of plastic and rubber products, thanks to its high purity and precisely controlled microscopic particle morphology. In the plastics industry, whether for injection molding, extrusion, or blow molding, the incorporation of Precipitated Barium Sulfate offers multiple benefits. Its low oil absorption value allows the resin system to maintain better flowability during processing, facilitating the filling of complex molds and reducing internal stress. Its excellent dispersibility ensures uniform properties and brighter colors throughout the product. Simultaneously, it significantly improves the product's stiffness, surface hardness, scratch resistance, and thermal stability. Because its refractive index is similar to that of many resins, it can be used in films or products requiring transparency without causing significant haze. In the rubber sector, Precipitated Barium Sulfate acts as an inert reinforcing filler, improving the mixing and extrusion processes of the compound, enhancing the tear strength and flex-fatigue resistance of the vulcanizate, and imparting excellent acid/alkali resistance and insulating properties to the product. It is widely used in PVC window profiles, engineering plastics, high-grade shoe soles, rubber seals, and cable sheathing, serving as a key additive for achieving high performance and product differentiation.

Why Choose Us?

✅ High-purity products, in compliance with international standards
✅ 30+ Years Chemical Manufacturing Experience
✅ Strict QC with Batch Traceability
✅ Global logistics, supporting sea and air transportation
✅ Technical support, providing customized solutions
✅ Factory direct supply, with strong price competitiveness