Other
Polymers of vinyl chloride or of other halogenated olefins, in primary forms. > Fluoro-polymers: > Other > Other
Duty Rate (from China)
Subheadings
Products classified under Tariff item 3904.69.00
Chlorinated Fluoropolymer Concentrate Pellets
These pellets are a chlorinated olefin fluoropolymer concentrate for extrusion applications, with a polymer content compliant with the 95% rule for fluoropolymers. They are supplied in primary forms and are not otherwise specified in the subheading. As a fluoropolymer in primary forms, they fall under tariff item 3904.69.00.
Dyneon FC 2210Z Fluoroelastomer
Dyneon FC 2210Z is a bisphenol-curable fluoroelastomer supplied as primary pellets, with a vinylidene fluoride/hexafluoropropylene copolymer content exceeding 95% by weight. It is designed for low-temperature flexible seals in aerospace applications. As a fluoropolymer in primary forms not elsewhere specified, it falls under tariff item 3904.69.00.
Ethylene Chlorotrifluoroethylene Copolymer (ECTFE)
ECTFE is a copolymer fluoropolymer primarily composed of chlorotrifluoroethylene and ethylene, with comonomer units meeting the 95% content requirement. It is supplied in primary forms such as pellets or powder for various applications. As a fluoropolymer in primary forms not elsewhere specified, it is classified under tariff item 3904.69.00.
Fluorel Elastomer FC-2182
Fluorel FC-2182 is a perfluoroelastomer gum stock with perfluoromethyl vinyl ether and tetrafluoroethylene as the primary monomer units, exceeding 95% by weight. It is supplied in raw gum form for compounding into seals requiring extreme chemical resistance. This elastomeric fluoropolymer in primary forms is classified under tariff item 3904.69.00.
Fluorinated Ethylene Propylene Special Copolymer
Fluorinated Ethylene Propylene (FEP) special copolymer pellets are a type of fluoropolymer in primary forms, produced by copolymerizing tetrafluoroethylene and hexafluoropropylene. They are classified under tariff item 3904.69.00 as 'Other' fluoropolymers because the copolymer does not meet the 95% monomer content threshold for named subheadings, and no single comonomer unit predominates sufficiently to merit a more specific classification. These pellets are used in applications requiring high chemical resistance and thermal stability, such as wire insulation and chemical processing equipment.
Fluorosulfonated Polymer Powder (for Membranes)
Fluorosulfonated polymer powder is a fluoropolymer in primary form, chemically modified with sulfonyl groups for use in ion-exchange membranes. It falls under tariff item 3904.69.00 as 'Other' fluoropolymers because the chemical modification places it in the 'Other' subheading per subheading note 1(a)(3), as it is not more specifically covered elsewhere. The powder form is a primary form as defined in chapter note 6, suitable for further processing into membranes.
Kalrez Perfluoroelastomer 6375
Kalrez 6375 is a perfluoroelastomer (FFKM) composed of tetrafluoroethylene, perfluoromethyl vinyl ether, and a cure-site monomer, with the polymer content exceeding 95% by weight. It is supplied in gum form for compounding into O-rings for chemical process industries. As an elastomeric fluoropolymer in primary forms, it falls under tariff item 3904.69.00.
Perfluoroalkoxy Resin (PFA)
PFA is a fluoropolymer resin composed of perfluoroalkyl vinyl ethers and tetrafluoroethylene, supplied in primary forms such as pellets. It is classified as an 'other' fluoropolymer under the subheading. As a fluoropolymer in primary forms not elsewhere specified, it falls under tariff item 3904.69.00.
Polychlorotrifluoroethylene Pellets (PCTFE)
PCTFE resin in pellet form is a fluoropolymer derived from chlorotrifluoroethylene, with the monomer exceeding the 95% content requirement. It is supplied in primary forms for various applications. As a fluoropolymer in primary forms not elsewhere specified, it is classified under tariff item 3904.69.00.
Polyvinylidene Fluoride Resin (PVDF)
PVDF is a fluoropolymer derived from vinylidene fluoride monomer, supplied in primary forms such as pellets or powder. It meets the subheading note requirement for monomer content exceeding 95%. As a fluoropolymer in primary forms not elsewhere specified, it falls under tariff item 3904.69.00.
Simriz Z75 Perfluoroelastomer
Simriz Z75 is a perfluoroelastomer (FFKM) with a perfluoromethyl vinyl ether/tetrafluoroethylene copolymer content exceeding 95% by weight. It is supplied as a raw polymer for compounding into downhole seals for oil and gas applications. This elastomeric fluoropolymer in primary forms is classified under tariff item 3904.69.00.
Tecnoflon FOR P 4590
Tecnoflon FOR P 4590 is a peroxide-curable fluoroelastomer based on a vinylidene fluoride/perfluoromethyl vinyl ether copolymer, with comonomers exceeding 95% by weight. It is supplied in primary form pellets for injection molding gaskets in automotive fuel systems. This fluoropolymer in primary forms falls under tariff item 3904.69.00.
Tetrafluoroethylene-Hexafluoropropylene Copolymer (FEP Resin)
FEP resin pellets are a copolymer of tetrafluoroethylene and hexafluoropropylene, meeting the 95% monomer content rule for halogenated olefin polymers. They are supplied in primary forms for various applications. As a fluoropolymer in primary forms not elsewhere specified, they are classified under tariff item 3904.69.00.
Vinylidene Fluoride-Hexafluoropropylene Copolymer (PVDF-HFP)
PVDF-HFP copolymer granules are a fluoropolymer where vinylidene fluoride predominates by weight, with the comonomer content meeting the 95% rule. They are supplied in primary forms for use as battery binders. As a fluoropolymer in primary forms not elsewhere specified, they fall under tariff item 3904.69.00.
Viton Fluoroelastomer A-Type
Viton A-type is a fluoroelastomer copolymer of vinylidene fluoride and hexafluoropropylene, with comonomer units contributing over 95% by weight of the total polymer content. It is supplied in primary forms such as pellets or sheets for molding into seals and gaskets. As a fluoropolymer in primary forms not elsewhere specified, it is classified under tariff item 3904.69.00.
Viton Fluoroelastomer B-Type
Viton B-type fluoroelastomer is a copolymer of vinylidene fluoride, hexafluoropropylene, and cure-site monomers, with comonomer content exceeding 95% by weight. It is used in primary form for high-temperature O-rings and diaphragms. This fluoropolymer in primary forms falls under tariff item 3904.69.00.