HS Code for Zinc flakes

Zinc flakes are classified under HS code 7903.90 because they represent a specific physical form of zinc that has been processed into thin, lamellar particles. Unlike zinc dust, which consists of spherical or irregular particles, flakes are characterized by their high surface-area-to-thickness ratio. This classification falls within Chapter 79, which covers zinc and articles thereof, and specifically under heading 79.03, which encompasses zinc dust, powders, and flakes. The determination for 7903.90 is based on the manufacturing process that flattens the zinc particles, typically through ball milling with lubricants to prevent cold welding. These flakes are primarily used in the production of anti-corrosive coatings and paints, where their overlapping structure provides a physical barrier against moisture and oxidation. The classification remains here as long as the flakes are not mixed with other substances to form a prepared pigment or paint.

Products Included

• Lamellar zinc particles
• Zinc flakes for protective coatings
• Metallic zinc flakes for industrial paints
• Zinc flake pigments (unmixed)
• Zinc flake powders for mechanical plating

Common Misclassification

Zinc flakes are frequently confused with zinc dust, which is classified under HS code 7903.10. The distinction lies in the particle shape; 7903.10 is reserved for powders of a spherical nature, whereas 7903.90 covers the lamellar flake form. Additionally, if the zinc flakes are already mixed with binders or solvents to form a finished paint, they may be misclassified under heading 32.08 or 32.09. Another common error involves classifying them under 32.06 as other coloring matter, but pure metallic flakes remain in 7903.90 unless they are prepared as complex pigments.

FAQ

What is the HS code for zinc flakes?

The HS code for zinc flakes is 7903.90, which falls under the category of zinc powders and flakes.

How do flakes differ from zinc dust in the HS system?

Zinc dust (7903.10) consists of fine, globular particles usually obtained by the condensation of zinc vapor, while flakes (7903.90) are flattened, plate-like particles often produced by mechanical milling.