Diallyl Isophthalate Resin Granules from Mexico
Unsaturated polyester resin based on diallyl isophthalate in granular primary form for high-performance composites. Falls under HTS 3907.91.4000 as 'other' allyl resins due to allyl ester structure and >95% qualifying monomer content. Used in aerospace and automotive parts molding.
Duty Rate — Mexico → United States
15.8%
Rate breakdown
9903.05.5510%Except for products described in headings 9903.05.85–9903.05.92 and 9903.05.94, articles the product of Mexico, as provided for in U.S. note 52 to this subchapter
Import Tips
• Submit detailed polymer spec sheets showing allyl monomer dominance; use ISO-certified testing
• Avoid bulk bags over 25kg if mislabeled as articles
• Common pitfall: reclassification if fillers exceed 5% by weight