China White wollastonite powder for ceramic, construction materials, and coating products factory and suppliers

White wollastonite powder for ceramic, construction materials, and coating products

Short Description:

Wollastonite powder is a naturally occurring calcium silicate mineral processed into fine, free-flowing powder with distinct acicular (needle-like) morphology. This unique structure enhances its performance as a functional additive across multiple industries, offering exceptional reinforcement and filler properties.

In ceramics, it reduces firing shrinkage and improves mechanical strength, making it ideal for producing high-density, durable ceramic products. Its high whiteness ensures consistent color in glazed and unglazed ceramics, while thermal stability resists deformation at high temperatures.

For plastics and rubber manufacturing, wollastonite powder acts as a cost-effective reinforcement, boosting tensile strength, impact resistance, and dimensional stability. It replaces more expensive fillers without compromising product quality, supporting lightweight designs in automotive and consumer goods.

In paints and coatings, it enhances opacity, scratch resistance, and weatherability. The powder’s low oil absorption reduces binder usage, lowering production costs while maintaining coating performance. It also improves adhesion to various substrates, extending coating lifespan.

Paper industry uses include enhancing surface smoothness and printability in coated papers. Its inert nature ensures compatibility with other additives, while fine particle size enables uniform dispersion.

Industrial-grade wollastonite powder meets strict purity standards, with low impurity levels ensuring consistent performance. Its chemical inertness makes it suitable for applications requiring resistance to acids and alkalis, adding versatility to manufacturing processes.

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Product Detail

Product Tags

Wollastonite

Details:

Wollastonite is a single-chain silicate mineral, the main component is Ca₃Si₃O₉. Triclinic crystal system, usually in the form of flakes, radial or fibrous aggregates. White with slight gray. Glass luster, pearl luster on the cleavage surface. Hardness 4.5-5.0 with density of 2.78-2.91g/cm³. Mainly produced in the contact metamorphic zone of acidic intrusive rock and limestone, it is the main mineral composition of skarn.

Prroduct Advantage:

Plastics industry:

In the plastics industry, wollastonite powder not only plays a filling role, but also partially replaces asbestos and glass fiber for reinforcing materials. Mainly used to improve tensile strength and flexural strength and reduce costs.

Rubber industry:

In the rubber industry, wollastonite powder is an ideal filler for rubber, not only can reduce the production cost of rubber products, but also can improve the rubber mechanical properties give special functions that rubber does not have.

Paints&Coatings industry:

In the coating industry, wollastonite powder is used as a filler for paints and coatings, which can improve the physical and chemical properties of the product, durability and weather resistance, reduce the gloss of the paint, enhance the expansion ability of the coating, reduce cracks, and can also reduce oil absorption and enhance corrosion resistance.