Toluene Diisocyanate (TDI) 80/20 from Canada
TDI 80/20 is an 80% 2,4-TDI and 20% 2,6-TDI isomer mix, a chemically defined isocyanate for flexible foams. HTS 2929.10.55.00 covers it as listed in U.S. note 3 to section VI.
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
• Isomer ratio certification required; highly reactive—avoid moisture exposure
• Watch for TSCA registration needs