Surface Treatment Zinc Dust from Canada
Fine zinc dust for metal surface passivation and galvanizing activation, featuring vapor-condensed spherical particles (85% <63 μm) and 91% metallic zinc purity. Directly classified under 7903.10.00.00 as zinc dust distinct from powders.
Duty Rate — Canada → United States
10%
Rate breakdown
9903.05.2910%Section 301 (forced labor) — additional 10% ad valorem on products of Canada
Import Tips
• Customs may require XRF analysis for zinc purity confirmation
• Label drums with UN number 1436 and 'spontaneously combustible' warnings
• For NAFTA/USMCA, claim preferential if Mexican vapor plant certified