Import Ceramic Powder For Coating Al2o3 Powder — Buy in wholesale FOB from Supplier in China

The ceramic powder for coating, marketed as MB-1 and MB-2 by Qingdao Topsen chemical, is a hollow, lightweight composite primarily composed of SiO2 and Al2O3, designed to replace titanium dioxide in architectural and industrial coatings. Its particle size ranges from 3 to 5 micrometers, with a packing density of 0.6 to 0.8 g/cm³ and an oil absorption value between 32 and 38 mL/100g. The material exhibits a whiteness index greater than 93 on the GE scale, pH between 6 and 7, and a Mohs hardness of 5 to 6, making it suitable for high-gloss and semi-gloss formulations where optical clarity and durability are critical.

This powder is engineered with a modified hollow structure that reduces overall coating weight while enhancing light scattering and thermal insulation. It improves paint film adhesion, scrub resistance, and fire performance without compromising transparency. Unlike titanium dioxide, it does not cause flocculation in aqueous systems and prevents yellowing over time. The product is compatible with both water-based and solvent-based systems, including powder coatings, coil coatings, and electrophoretic paints. It is commonly used in civil construction, industrial maintenance, and high-temperature resistant coatings where cost efficiency and performance balance are prioritized.

Buyers in the architectural coating, automotive primer, and industrial finish sectors use this material to reduce pigment loading and lower production costs. It is typically supplied in 25kg paper-plastic composite bags, with standard bulk packaging available upon request. The material is not certified for food contact or medical use. Buyers should confirm batch-to-batch consistency in particle size distribution and oil absorption before large-scale adoption. Lead times for standard orders are typically 7 to 14 days, and shipping is usually FOB Qingdao.

Qingdao Topsen chemical is a manufacturer based in Qingdao, Shandong Province, with a harbor-tier verification status indicating active export operations. The company's profile does not disclose its founding year, employee count, or annual production volume. It is listed as a supplier of functional ceramic powders for coatings, with no mention of in-house R&D, third-party certifications, or international client names. The absence of response rate or average response time suggests limited buyer engagement on the platform.

The supplier does not claim ISO, CE, or any other formal certification. Its technical data is presented as product specifications without reference to standardized testing methods. The company appears to operate as a direct producer of modified hollow ceramic powders, with no indication of trading, repackaging, or distribution partnerships. Buyers should request batch-specific test reports for particle size, oil absorption, and whiteness before placing orders.