Thermoplastic Polysulfide Resin Powder
Polysulfide polymers in thermoplastic powder primary form, note 3 products of heading 3911. Under 3911.90.91.10 as other thermoplastics, used in sealants and fuel-resistant coatings.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If not thermoplastic (thermoset)
Thermosetting polysulfides classify under separate subheading post-thermoplastic.
If sold as retail bagged powder >38.1x45.7cm
Other plastic items for retail over size limits lose Free (B) but shift from primary forms.
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Import Tips & Compliance
• Supplier affidavits on sulfur monomer content essential for note 3 verification
• Avoid compounding; pure powder prevents shift to 3920 plates/films
Related Products under HTS 3911.90.91.10
Coumarone-Indene Resin Flakes
Coumarone-indene resins in thermoplastic flake form, primary products under heading 3911 as specified in note 3. Classified in 3911.90.91.10 for other thermoplastics not elsewhere included, used as tackifiers in adhesives and tires.
Liquid Polysulfone Concentrate
Low-viscosity thermoplastic polysulfone in concentrated solution primary form, but solid-adjusted for 3911.90.91.10 as other thermoplastic per notes. Used in specialty coatings.
Polyetherimide Resin Pellets
Polyetherimide (PEI) is a high-performance thermoplastic polymer in primary pellet form, derived from specific monomers meeting the 95% weight requirement under subheading notes. Classified under 3911.90.91.10 as a thermoplastic product specified in note 3, not elsewhere specified, due to its amorphous structure and engineering properties. Used in demanding applications like aerospace components.
Polysulfone Granules
Polysulfone (PSU) thermoplastic resin in granule primary form, a polymer specified in heading 3911 note 3 with monomer units exceeding 95% by weight. Falls under 3911.90.91.10 as other thermoplastic not elsewhere specified, valued for heat resistance in medical and filtration applications.
Polyterpene Thermoplastic Pellets
Synthetic polyterpene resins in thermoplastic pellet primary form, covered under 3911 note 3 products. 3911.90.91.10 applies as other thermoplastic, ideal for hot-melt adhesives with high tack.
High-Tack Petroleum Resin Beads
Hydrogenated C9 petroleum resins in thermoplastic bead form, primary under 3911 note 3. 3911.90.91.10 for other thermoplastics, applied in pressure-sensitive adhesives.