Fast Black Base E Salt from Mexico
Fast Black Base E Salt is a double diazo fast color salt producing deep black shades for wool and silk dyeing with excellent wet fastness. Used in high-end textile applications requiring durability. HTS 2927.00.30.00 classification for fast color salts.
Duty Rate — Mexico → United States
16.5%
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
• Provide fastness test results (ISO standards) proving 'fast color' designation
• Diazo salts require acidic packaging; document stabilizer composition
• Avoid bulk mixtures; pure compounds stay in Chapter 29, preparations go to 3824