tert-Butyl Peroxybenzoate from Canada
An aromatic ether peroxide used as a curing agent in polyester resins and rubber vulcanization. Classified under HTS 2909.60.20.00 due to its aromatic structure with ether-peroxide functionality. Meets Chapter 29 requirements for chemically defined organic peroxide derivatives.
Duty Rate — Canada → United States
15.5%
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
• Classify based on predominant aromatic peroxide structure; provide NMR/GC certificates confirming chemical identity
• Use temperature-controlled shipping containers as peroxides decompose above 30°C; declare self-accelerating decomposition temperature (SADT)
• Check for anti-dusting agents; additions per Chapter 29 note (g) allowed only if not rendering product for specific use