Purified 2,4-TDI (Xylene Diisocyanate Isomer) from Canada
Purified 2,4-xylene diisocyanate (often synonymous with TDI in trade), a specific isomer listed under HTS 2929.10.20.00 for its diisocyanate structure. Essential for rigid polyurethane foams in insulation panels. Qualifies as separate organic compound under Chapter 29 notes (a).
Duty Rate — Canada → United States
15.8%
Rate breakdown
9903.05.2910%Section 301 (forced labor) — additional 10% ad valorem on products of Canada
Import Tips
• Use refrigerated containers to prevent solidification; declare exact CAS 584-84-9
• Common issue: Reclassification if moisture content >0.1% forms dimers