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2921.22.50.00/Hexamethylenediamine Epoxy Adduct/Mexico

Hexamethylenediamine Epoxy Adduct from Mexico

Reaction product of hexamethylenediamine with epoxy resin, used as curing agent. Still classified under HTS 2921.22.5000 if retaining polyamine character. Viscosity 500-2000 cps.

Duty Rate — Mexico → United States

16.5%

Rate breakdown

9903.05.5510%Section 301 (forced labor) — additional 10% ad valorem on products of Mexico
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Import Tips

• Submit epoxy equivalent weight and amine hydrogen equivalent weight specs

• Classify as UN 2735; require proper hazardous material training

• Distinguish from fully cured epoxy systems (Chapter 39)