Chlorinated Nitrile Butadiene Rubber (HNBR-Cl) from Mexico
High-performance chlorinated synthetic rubber based on hydrogenated nitrile butadiene rubber, with chlorinated units exceeding 95% by weight. Ideal for automotive seals and gaskets requiring heat and fluid resistance. Falls under 3911.90.70.00 for its primary form chlorinated structure.
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
• Submit FTIR or NMR test reports proving chlorination meets subheading purity standards
• Ensure declaration specifies 'primary forms' to distinguish from finished articles in 3926