IIR Butyl Rubber Silica Bale from Canada
Isobutylene-isoprene rubber (IIR, butyl) bales compounded with silica for inner tube production, unvulcanized primary bales. HTS 4005.10.00.00 covers this as compounded with silica in bulk form.
Duty Rate — Canada → 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
• Bales require airtight packaging certificates to prevent premature oxidation
• Differentiate from oil-extended butyl, which may have different rules
• Audit risk high if not clearly labeled vs. natural rubber bales