Carbodimide PE Blend Pellets from Mexico
Carbodimide PE blend pellets are thermoplastic granules under HTS 3911.90.15.00, featuring the specified homopolymer of 2,4-diisocyanate-1,3,5-tris(1-methylethyl) with polyethylene, where aromatic units predominate by weight. Used as hydrolysis stabilizers in TPU films and coatings for automotive and textile applications. Primary form classification applies as these are unmodified polymer pellets ready for compounding.
Duty Rate — Mexico → United States
10%
Rate breakdown
9903.05.5510%Section 301 (forced labor) — additional 10% ad valorem on products of Mexico
Import Tips
• Provide monomer analysis confirming aromatic content meets 95% threshold for named polymer per Chapter 39 subheading note (a)(1)
• Ensure packaging specifies 'primary forms' to avoid classification as articles (3926)
• Watch for CBP requests for FTIR spectra verifying polyethylene homopolymer blend