Vanadium Phosphate Flame Retardant from Mexico
Intumescent flame retardant mixture of ammonium vanadate, polyphosphates, and melamine for polymer composites. HTS 3824.99.36.00 classification for inorganic vanadium mixtures in plastics. Forms protective char layer during combustion.
Duty Rate — Mexico → United States
16.5%
Rate breakdown
9903.05.5510%Section 301 (forced labor) — additional 10% ad valorem on products of Mexico
Import Tips
• UL 94 flammability test results required; TSCA polymer additive notification
• Char formation mechanism documentation
• Pitfall: organic phosphate confusion