Hexamethylene Diisocyanate (HDI) from Canada
HDI is an aliphatic diisocyanate with the formula OCNC6H12NCO, classified in HTS 2929.10.80 as an other isocyanate compound with nitrogen function. Commonly used in high-performance, UV-resistant polyurethane clearcoats for vehicles and wood finishes.
Duty Rate — Canada → United States
16.5%
Rate breakdown
9903.05.2910%Section 301 (forced labor) — additional 10% ad valorem on products of Canada
Import Tips
• Declare exact isocyanate content percentage as impurities affect classification purity
• Obtain respiratory sensitization hazard certifications for worker safety documentation
• Monitor volatility controls and stabilizer declarations for transport stability