Epoxy Thermosetting Resin Granules
Granules of bisphenol A-based epoxy resin, thermosetting with aromatic epoxy groups, in primary form for composite manufacturing. Falls under HTS 3911.90.4500 as other thermosetting products with aromatic monomer units not specified elsewhere. Essential for adhesives, coatings, and aerospace composites.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If epoxy of aromatic polyesters
Specific aromatic epoxy resins classified in 3907.30 if matching that polymer series.
If for amino-resins modified with aromatic epoxies
Blends or modifications may shift to amino-resin headings if predominant.
If sold as liquid resin solutions
Silicones or liquid primary forms go to 3910, not solid thermosetting pellets.
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Import Tips & Compliance
• Document bisphenol aromatic content >95% by weight as per subheading note (a)(1) for polymer prefix rules
• Avoid blending declarations that trigger predominant monomer reclassification under note (a)(4)
Related Products under HTS 3911.90.45.00
Phenolic Thermosetting Resin Pellets
Pellets of phenolic resin, a thermosetting polymer containing aromatic monomer units derived from phenol and formaldehyde, supplied in primary form for molding applications. Classified under HTS 3911.90.4500 as a thermosetting product specified in note 3, not elsewhere included, with aromatic components. Used in electrical insulators and automotive parts due to heat resistance.
Polyaramid Thermosetting Powder
Fine powder of polyaramid (aromatic polyamide) thermosetting resin for high-performance coatings and laminates. HTS 3911.90.4500 covers this as other thermosetting with aromatic monomer units in primary form. Known for exceptional thermal stability in electronics.
Coumarone-Indene Thermoset Resin Flakes
Flakes of coumarone-indene resin modified to thermosetting state with aromatic monomers for adhesive and ink production. Specifically listed under 3911 primary forms, subheading 3911.90.4500 for thermosetting variants. Provides tack and flexibility in formulations.
Polysulfone Thermosetting Beads
Beads of polysulfone resin with thermosetting modifications containing aromatic sulfone units for medical device molding. HTS 3911.90.4500 as polysulfones specified in note 3, thermosetting primary form. Offers biocompatibility and sterilizability.
Aromatic Polyterpene Thermoset Prills
Prills of polyterpene resin derived from aromatic terpenes, thermosetting for pressure-sensitive adhesives. Covered by 3911.90.4500 as polyterpenes with aromatic modifications in primary form. Enhances adhesion in tapes and labels.
Modified Petroleum Thermoset Resin Lumps
Lumps of C9 petroleum resin modified with aromatic monomers to thermosetting form for tire cord adhesives. HTS 3911.90.4500 for petroleum resins containing aromatic units, primary lumps. Improves rubber-to-fabric bonding.