Hypalon Chlorinated Rubber (CSM-20) from Mexico
Chlorosulfonated polyethylene (Hypalon CSM-20), a chlorinated synthetic rubber with >95% polyethylene-derived chlorinated units. Excels in chemical-resistant hoses and cables. Primary form classification under 3911.90.70.00.
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
• Certify chlorosulfonation doesn't exceed 'chemically modified' per note (a)(3) for 'Other'
• Avoid bulk packaging confusion with 3923 retail packs
• Test for exact chlorine/sulfur content to prevent 3901.10 misclass