Potassium Fluoride Metal Cleaning Salt from Mexico
Fused salt mixture of potassium fluoride and sodium fluoride for electrolytic metal cleaning. Wholly inorganic preparation etches surfaces before plating, classified 3810.90.2000 as auxiliary for metal treatment. Used in aerospace finishing.
Duty Rate — Mexico → United States
10%
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
Import Tips
• Fluoride import permit from EPA; high scrutiny for toxicity
• Include bath formulation ratios in entry docs
• Avoid 'degreaser' description leading to 3402 misclassification