Waterborne Coatings Emulsion Paint
Optimized Functional Filler for Advanced Formulations
Calcined kaolin is an advanced aluminosilicate functional filler, meticulously produced through the precise high-temperature calcination of natural kaolin clay. This thermal refinement, known as dehydroxylation, transforms the crystalline structure to achieve exceptional chemical inertness, high brightness (GE 93%+), and tightly controlled particle morphology. Widely utilized as a high-performance pigment and extender, this versatile mineral significantly enhances the opacity, whiteness, and durability of waterborne coatings, emulsion paints, and ceramic glazes. Its consistent fine particle size and platy nature allow formulators to reduce costly TiO₂ loadings while maintaining superior hiding power and a smooth, uniform finish. By choosing Huabang calcined kaolin, manufacturers invest in a raw material that delivers reliability, performance, and significant cost efficiency across demanding industrial applications.
2. Enhancing Waterborne Coatings and Emulsion Paints
In modern waterborne coatings and emulsion paints, calcined kaolin acts as a key functional pigment and extender that directly improves both aesthetic and protective properties. Its inherent high whiteness and optimized light-scattering characteristics contribute to a brighter, more uniform finish in interior and exterior applications. By strategically replacing a portion of Titanium Dioxide (TiO₂), calcined kaolin provides substantial raw material cost savings without sacrificing whiteness or covering power. The controlled particle size distribution positively influences the Critical Pigment Volume Concentration (CPVC), enhancing film integrity and rheological stability. Beyond its economic benefits, calcined kaolin improves the mechanical strength, weather resistance, and long-term durability of coating films. The platy particle structure acts as an effective barrier against moisture and UV radiation, ensuring excellent chalk resistance and color retention over time. Furthermore, its natural inertness and low reactivity make it compatible with a wide range of binder systems, from pure acrylics to styrene-acrylic copolymers, providing formulators with the flexibility to meet diverse performance specifications.
3. Perfecting Ceramic Glazes and Fired Finishes
For ceramic manufacturers, calcined kaolin is a vital raw material that ensures both aesthetic excellence and structural reliability. It provides a smooth, glossy finish while refining the overall visual quality of fired ware. Its excellent thermal stability and controlled melting profile guarantee consistent performance under high-temperature firing conditions, making it an ideal source of alumina and silica for glazes on stoneware, porcelain, and sanitaryware. The refined, well-graded particle size distribution guarantees a homogeneous glaze slurry, promoting even application and predictable melt behavior while significantly reducing defects such as crazing, pinholing, or crawling. This leads to higher production yields and brilliant, durable surfaces with enhanced scratch and chemical resistance. The high aspect ratio of the calcined particles also improves the suspension of the glaze, preventing hard settling and ensuring consistent coating thickness during the dipping or spraying process.
Our calcined kaolin is manufactured under rigorous quality control protocols to ensure absolute batch-to-batch consistency. Every production lot is routinely analyzed for brightness, particle size distribution, chemical composition, and oil absorption. The following table outlines our standard product specifications. Customized formulations, particle size cuts, and brightness levels are available upon request to suit specific manufacturing processes and end-product requirements.
| CAS Number | 1332-58-7 |
| Place of Origin | China |
| Color / Whiteness | White / Yellowish White |
| Physical Form | Fine Powder |
| Purity (Al₂O₃ Content) | 90% – 97% |
| Available Grades | Cosmetics Grade / Industrial Grade |
| Packaging Options | 5–25 kg/bag, Customizable Packaging |
| Minimum Order Quantity (MOQ) | 1 kg (Samples Available) |
We offer flexible packaging solutions, including standard 5kg and 25kg multi-ply paper bags, as well as 1,000kg super sacks and customized packaging tailored to your logistics requirements. For research and development purposes, trial samples and small MOQs are readily available to support your formulation work.
5. Why Partner with Huabang Mica?
Overall, calcined kaolin is a versatile and indispensable raw material for modern waterborne coatings, emulsion paints, and ceramic glazes. Its unique combination of high brightness, chemical purity, and functional performance empowers manufacturers to create beautiful, long-lasting finished products while effectively optimizing production costs. Partnering with Huabang Mica ensures access to top-tier industrial minerals, backed by decades of technical expertise in mineral processing and a steadfast commitment to quality and supply chain reliability. We invite you to experience the Huabang difference—where rigorous quality standards meet responsive customer service. Contact our technical sales team today to discuss your specific application requirements and discover how our premium calcined kaolin can elevate your product line.