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Needle-like wollastonite powder

Country/Region china
Company Jiangxi Kete Fine Powder Co, Ltd
Categories Silicone Powder
Telephone 0795-2506333, 2527786
ICP License Issued by the Chinese Ministry
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Needle-like wollastonite powder

Product detail

Needle-like wollastonite powder


Processed quality fibrous wollastonite powder has a high Length-diameter ratio (15-20: 1) ; Since wollastonite has a fibrous, Needle-like structure, color is bright white, natural low iron, micro sulfur, phosphorus non-crystalline water, high Melting point, resistance to corrosion and aging, small thermal expansion coefficient, high refractive index, good reinforcement, sealing, heat resistance, wear resistance, good stability and other characteristics.

Product specification model, index items

Technical Index


SiO2% ≤






Al2O3 %≤


loss on ignition


Length-diameter ratio


Specific gravity


Mohs hardness


Refractive index


Melting point ℃


Oil absorption capacity


Coefficient of thermal expansion



White powder

Note: according to customer demand, we can produce Active Heavy calcium carbonate with different Whiteness, purity or fineness

Application fields

Widely used in the composite material (electronic components, packaging materials, high-performance rubber products, automotive housing, mold), paper, ceramics, building materials, rubber, plastics, paints, coatings, chemicals, welding, nylon, casting powder of metallurgy, as well as asbestos substitutes and other fields.


It can replace glass fiber, plant fiber, pulp fiber as reinforcement of polymer composite materials to improve material properties; play a role in weight gain and enhance reinforcement, and then reduce production costs. Needle-like wollastonite owns higher reinforcement than conventional silicon powder stone powder , as a framework structure in the product

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