High Molecular Weight Butyl Rubber Crumbs from Canada
Crumbs of high MW isobutene-isoprene rubber for blending in conveyor belts. HTS 4002.31.00.00 for primary crumb form, complying with synthetic rubber vulcanization and recovery tests in chapter note 2(a).
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
• Lab tests for elongation/recovery properties mandatory for synthetic rubber proof
• Crumb size uniformity prevents reclass to waste under 4004
• Document MW specs for quality assurance in customs valuation