Spherical Atomized Grade vs Flaky Leafing Aluminum Powder Particle Size & Performance Comparison

Aluminum Powder is mainly divided into spherical atomized grade and flaky leafing grade according to particle shape and production process. The two types have obvious differences in particle size distribution, surface activity, glossiness and applicable industries, requiring targeted selection in actual industrial procurement.

 

Spherical atomized Aluminum Powder is produced by high-pressure gas atomization, with regular round particle shape, good fluidity and low surface oxidation rate. It features stable chemical performance and uniform particle size, mainly used for metallurgical deoxidation, powder metallurgy parts and thermal conductive filling materials. It is not easy to agglomerate during storage and transportation.

 

Flaky leafing Aluminum Powder is processed by ball milling treatment, presenting flat flake shape with strong covering power and excellent metallic luster. Its core advantage lies in high surface hiding power, which is irreplaceable for metallic paint and anti-corrosion coating production. However, flaky aluminum powder is easier to be oxidized than spherical products.

 

In terms of storage requirement, spherical Aluminum Powder has better oxidation resistance and longer shelf life, suitable for long-distance ocean transportation. Flaky aluminum powder needs nitrogen-filled sealed packaging to slow down surface oxidation. In terms of price, flaky leafing grade has higher production cost and higher unit export price.

 

Simply put, buyers focusing on metallurgy and powder metallurgy should choose spherical atomized Aluminum Powder. Factories producing metallic coatings and pigments need to select flaky leafing aluminum powder. Correct product selection can maximize material performance and reduce unnecessary procurement cost waste.