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3810.90.20.00/Zinc Chloride Soldering Flux Paste/Mexico

Zinc Chloride Soldering Flux Paste from Mexico

Water-based paste of zinc chloride and ammonium chloride for soldering galvanized steel. Acts as inorganic flux to clean surfaces during electrical connections, under 3810.90.2000. Residue must be washed post-use.

Duty Rate — Mexico → United States

10%

Rate breakdown

9903.05.5510%Section 301 (forced labor) — additional 10% ad valorem on products of Mexico
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Import Tips

• Confirm no organic activators; ammonium counts as inorganic

• Corrosive labeling (UN 2331); provide neutralization procedure