Titanium Pickling Paste (Inorganic) from Mexico
Thick paste of nitric and hydrofluoric acids for on-site pickling of titanium welds. Inorganic gelling with silica, classified 3810.90.2000 for metal surface preparation. Offshore oil platform construction.
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
• Dual acid hazards (UN 1798 + 1045); segregated storage
• Gel stability test docs required
• Thickener must be inorganic (fumed silica only)