Soldering Powder Flux for Lead-Free from China
Ammonium chloride-zinc chloride powder flux for lead-free solder joints in plumbing fixtures. Under HTS 3810.90.5000 as other soldering auxiliary preparation, activated for tin-silver-copper alloys. Water-soluble for post-flow cleaning.
Duty Rate — China → United States
40%
Rate breakdown
9903.03.0110%Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
9903.88.0325%Except as provided in headings 9903.88.13, 9903.88.18, 9903.88.33, 9903.88.34, 9903.88.35, 9903.88.36, 9903.88.37, 9903.88.38, 9903.88.40, 9903.88.41, 9903.88.43, 9903.88.45, 9903.88.46, 9903.88.48, 9903.88.56, 9903.88.64, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(e) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(f)
Import Tips
• Chloride activation level docs separate from organic acid fluxes
• Lead-free alloy compatibility testing prevents plumbing rejection
• Hygroscopic powder requires sealed container import specs