1,6-Hexamethylene Diisocyanate (HDI) from Mexico
1,6-Hexamethylene diisocyanate (HDI) is a chemically defined aliphatic diisocyanate with the formula OCNC6H12NCO, used primarily as a reactive intermediate in polyurethane production. It falls under HTS 2929.10.3500 as an isocyanate compound with other nitrogen function, specifically named in the tariff schedule. This clear, colorless liquid is essential for creating durable coatings and adhesives.
Duty Rate — Mexico → United States
16.5%
Rate breakdown
9903.03.0110%Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
Import Tips
• Obtain proper SDS (Safety Data Sheets) and ensure packaging meets UN standards for hazardous materials transport (Class 6.1 toxic liquid)
• Verify importer security filing (ISF) includes accurate chemical composition to avoid CBP holds; include stabilizer declarations if present