As the coatings industry’s requirements for functional fillers increase, sodium feldspar has become a key material in a variety of coating systems due to its excellent physical and chemical stability, whiteness, hardness and chemical inertness. Henan Ankai New Materials Co., Ltd., relying on advanced technology and strict quality control, has launched sodium feldspar products of various specifications such as 600 mesh, 800 mesh and 1250 mesh, providing customized solutions for coatings companies to help them stand out in the market competition.
Sodium feldspar (NaAlSi₃O₈) is a natural silicate mineral with low oil absorption, high chemical stability, wear resistance and excellent dispersibility. It is mainly used as a functional filler in the coating industry. Its main applications include:
Improving coating performance: The lamellar structure and appropriate particle size distribution of sodium feldspar can enhance the mechanical strength, wear resistance and crack resistance of the coating, while improving the leveling and construction performance of the coating.
Reducing production costs: Compared with traditional fillers such as heavy calcium or talcum powder, the low oil absorption rate of sodium feldspar (about 20-25 g/100g) can reduce the amount of resin, thereby reducing the formulation cost.
Improving weather resistance: The high silicon content and chemical inertness of sodium feldspar make it show color stability and anti-aging properties in outdoor coatings, and it is suitable for coatings exposed to ultraviolet and humidity environments for a long time.
Environmental advantages: As a natural non-metallic mineral, sodium feldspar does not contain volatile organic compounds, which is in line with the global trend of green and environmentally friendly coatings.
Henan Ankai New Materials Co., Ltd. has developed three specifications of sodium feldspar products, 600 mesh, 800 mesh and 1250 mesh, according to the segmented needs of the coating industry. Sodium feldspar of different particle sizes has different focuses on performance and application scenarios:
600 mesh: coarse particle size, suitable for primer and industrial coatings. 600 mesh sodium feldspar has high hiding power and filling properties, which can effectively improve the anti-settling and mechanical strength of the coating, and is suitable for ship coatings and heavy anti-corrosion coatings. According to industry tests, its addition amount in anti-corrosion primers can reach 20%-30%, significantly reducing the formulation cost.
800 mesh: moderate particle size, taking into account hiding power and surface gloss, widely used in interior and exterior wall architectural coatings and wood coatings. The fine texture of 800 mesh sodium feldspar can improve the smoothness and anti-fouling properties of the coating film, and is particularly suitable for the production of mid-to-high-end latex paints. The recommended addition amount in the formula is 15%-25%.
1250 mesh: ultra-fine particle size, specially designed for high-gloss topcoats and special functional coatings. The excellent dispersibility and low oil absorption value (about 18 g/100g) of 1250 mesh albite make it outstanding in automotive coatings and coil coatings, and can improve the leveling and glossiness of the coating. The recommended addition amount is 10%-20%.
Henan Ankai New Materials Co., Ltd. is injecting new vitality into the global coatings industry with its excellent sodium feldspar products and professional services. In the future, the company will continue to uphold the concept of innovation-driven and green development, work with industry partners, and jointly promote the coatings industry to move towards higher performance and more environmentally friendly directions, and contribute to building a sustainable future.
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Henan Ankai New Materials Co., Ltd.
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Email: info@lsakminerals.com
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