Calcinated Kaolin for Paints, Coating & Pigments are heat processed into high-quality calcined pigments. These are used as pigment extender for Paints, polymers and plastics. The manufacturing process is designed for close control of the formation of the finished porous aggregate structure, leading to increased performance at reduced cost and improving the performance of paints, plastic, paper and rubber. It is a high brightness clay, with exceptional light scattering properties which give rise to the product’s excellent opacifying properties, making it an ideal TiO2 extender (can replace 20% TiO2) in many industrial applications.
Manufacturing Process:
Calcined Kaolin Powder is derived from high-quality Kaolin clay through a calcination process. During calcination, the raw Kaolin clay is heated to high temperatures, resulting in the removal of impurities and the transformation of the clay into a fine, white powder with improved physical and chemical properties.
High Brightness and Whiteness:
Calcined Kaolin Powder is renowned for its high brightness and whiteness, making it a preferred choice in industries such as ceramics, paints, coatings, and paper. Its bright and white appearance enhances the optical properties of the final products, providing excellent opacity and color control.
Superior Rheology and Suspension:
Calcined Kaolin Powder offers exceptional rheological properties, contributing to improved suspension and flow characteristics in various applications. It acts as a viscosity modifier and enhances the stability and workability of paints, coatings, and adhesives, allowing for better coverage and application performance.
Reinforcement and Filler:
With its unique particle structure, Calcined Kaolin Powder serves as a reinforcement and filler in rubber, plastics, and composites. It enhances the mechanical properties, such as strength, stiffness, and dimensional stability, while reducing costs by replacing more expensive fillers and extending the product's lifespan.
Heat Resistance and Insulation:
Due to its high temperature stability and low thermal conductivity, Calcined Kaolin Powder finds applications in refractories and ceramics. It can withstand extreme temperatures, making it suitable for high-temperature processes such as kilns, furnaces, and thermal insulation applications.
Environmental Friendliness:
Calcined Kaolin Powder is an environmentally friendly mineral. It is naturally occurring and abundant, and its production process involves minimal energy consumption. It is non-toxic and poses no harm to human health or the environment, making it a sustainable choice for various industries.
Chemical Composition
Calcined Kaolin Powder primarily consists of Kaolinite, a mineral composed of aluminum silicate. The exact chemical composition may vary depending on the source and production process, but it typically contains high levels of aluminum oxide (Al2O3) and silica dioxide (SiO2). Trace amounts of other minerals may be present, depending on the specific characteristics of the Kaolin clay used.
In summary, Calcined Kaolin Powder is a versatile mineral powder with exceptional brightness, whiteness, and a range of desirable properties. Its applications span industries such as ceramics, paints, coatings, plastics, rubber, and more. With its superior performance, Calcined Kaolin Powder enhances product quality, performance, and efficiency while offering environmental sustainability. Choose Calcined Kaolin Powder for your industry needs and experience its transformative impact on your applications.
Appearance: White powder
Particle size: 2 microns median
Specific gravity: 2.6-2.7
Refractive index: 1.6-1.62
Mohs hardness: 2-2.5
pH value: 6.0-7.5
Oil absorption: 50-60 g/100g
Brightness: 93-95
Loss on ignition: 12-14%
Moisture: 0.5% max.
Variation of the specifications stated due to natural raw materials and environment conditions are possible though they have no influence on the application properties described.
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