Optimal natural mineral powder for resin-reinforced fillers.
"Wollastonite" is a natural mineral that is produced in white needle-like and massive forms. It is mainly used as a ceramic raw material for tiles and porcelain, and later became widely used in construction materials as an asbestos substitute. The chemical composition of "Wollastonite" is stable, making it ideal for applications that require insulation and mechanical properties. Unlike chemically manufactured synthetic silica, its crystals are thin and long needle-like structures, which maintain these characteristics even when ground into fine powder. Additionally, it has a glossy white appearance and does not discolor or fade. [Features] ■ Ideal for applications requiring insulation and mechanical properties ■ Glossy white color with no discoloration or fading ■ Improved flexural modulus and tensile strength *For more details, please refer to the catalog. Feel free to contact us with any inquiries.
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basic information
【General Characteristics】 ■Chemical formula: CaSiO3 ■Chemical composition: CaO 43-50%, SiO2 46-54% Short needle-shaped FPW#400 (representative value) CaO 46.0%, SiO2 51.3%, Fe2O3: 0.21%, Al2O3 0.18% ■True specific gravity: 2.9 ■Melting point: 1540℃ ■Hardness (Mohs): 4.5 ■pH (10% slurry): 10.5-11.0 ■Refractive index: 1.63 ■Coefficient of thermal expansion: 6.5×10^6 mm/℃ *For more details, please refer to the catalog. Feel free to contact us with any inquiries.
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【Applications】 ■ Resin filling materials: General-purpose plastics, engineering plastics Improvement of bending modulus, dimensional stability, and surface smoothness ■ Paints and adhesives: Automotive, building materials, anti-sagging, crack prevention, improvement of coating strength ■ Steel industry: Steelmaking aids and welding rod flux ■ Others: Friction materials, ceramics, interior and exterior building materials, calcium silicate board *For more details, please refer to the catalog. Feel free to contact us with any inquiries.
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Company information
Since starting our business in 1947 as a manufacturer of raw materials for welding rods, we have aimed to be a development-oriented company and have grown as a supplier of materials in various fields such as ceramics, steelmaking and casting, electronic materials, cosmetics, and others. Moving forward, we will continue to value the traditions and trust we have built up to this point, and we will work on ensuring the stability of quality and securing supply as a material supplier. We aspire to be a company rich in creativity and a spirit of challenge that can quickly respond to our customers' new needs and offer further proposals, and we will strive to contribute to society as a united team of employees.