TMQ Rubber Age Resistor from Canada
TMQ (2,2,4-trimethyl-1,2-dihydroquinoline polymer) is a polymeric aromatic antioxidant providing long-term aging resistance in synthetic rubber conveyor belts. Classified in HTS 3812.39.60.00 due to its modified aromatic stabilizer composition for rubber.
Duty Rate — Canada → United States
16.5%
Rate breakdown
9903.05.2910%Except for products described in headings 9903.05.85–9903.05.93, articles the product of Canada, as provided for in U.S. note 52 to this subchapter
Import Tips
• Supply polymerization degree documentation to confirm compound stabilizer status
• Include rubber compatibility test results in commercial invoice
• Prevent misclassification by clearly marking 'not for direct consumer use'