p-Phenylene Diisocyanate (PPDI) from Canada
PPDI is a para-substituted benzene ring with two isocyanate groups, classified in HTS 2929.10.80 as other isocyanates with nitrogen function. Utilized in advanced polyurea coatings and composite materials.
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
• Specify crystal form vs liquid dispersion in product specifications
• Include explosion risk assessment for dust handling precautions
• Verify absence of heavy metal catalysts in production documentation