Polysar AO-80 Rubber Antioxidant from Canada
Polysar AO-80 is an 80% active octylated diphenylamine antioxidant dispersed on silica carrier for CR/neoprene rubber compounds. Its aromatic amine structure qualifies for HTS 3812.39.60.00 rubber stabilizer classification.
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
• Document silica carrier type and surface treatment for dispersion verification
• Provide Mooney scorch safety data for rubber processor validation
• Ensure silica content doesn't trigger dust hazard declarations