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%Except for products described in headings 9903.05.85–9903.05.92 and 9903.05.94, articles the product of Mexico, as provided for in U.S. note 52 to this subchapter
Import Tips
• Confirm no organic activators; ammonium counts as inorganic
• Corrosive labeling (UN 2331); provide neutralization procedure