Modacrylic Flame-Retardant Tow from Mexico
Modacrylic filament tow engineered with inherent flame-retardant properties for protective textile applications like firefighting gear. Falls under HTS 5501.30.00.90 as 'other' acrylic or modacrylic tow, characterized by at least 35% but less than 85% acrylonitrile content. Supplied in untwisted, continuous filament form for yarn production.
Duty Rate — Mexico → United States
17.5%
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
• Include flame-retardancy test certificates and polymer analysis to substantiate modacrylic classification
• Declare exact acrylonitrile percentage to differentiate from pure acrylic under statistical suffixes
• Avoid bundling with fabrics to prevent treatment as woven material under Chapter 55 headings