Polytetrafluoroethylene
Polymers of vinyl chloride or of other halogenated olefins, in primary forms. > Fluoro-polymers: > Polytetrafluoroethylene
Duty Rate (from China)
Subheadings
Products classified under Tariff item 3904.61.00
Extrusion-Grade PTFE Resin
Extrusion-grade polytetrafluoroethylene (PTFE) resin in granular primary form, engineered with controlled particle size distribution for ram extrusion into rods and profiles. This pure PTFE polymer, with monomer units exceeding 95% by weight, is classifiable under tariff item 3904.61.00 as polytetrafluoroethylene in primary forms.
High-Bulk Density PTFE
High-bulk-density polytetrafluoroethylene (PTFE) resin with engineered density (0.8+ g/cc) for automated molding processes. This pure, unfilled PTFE polymer in granular primary form meets the 95% monomer content rule, qualifying for tariff item 3904.61.00.
High-Purity PTFE Granules
Pharmaceutical-grade polytetrafluoroethylene (PTFE) granules with ultra-high purity (>99.9% PTFE), used in medical device molding. The product is in primary granular form and meets the strict 95% monomer content rule for named polymers, falling under tariff item 3904.61.00.
Low-Temperature PTFE Resin
Modified polytetrafluoroethylene (PTFE) resin with reduced sintering temperature for energy-efficient processing. Despite the modification, the polymer remains chemically unmodified PTFE, as the lower sintering temperature is achieved through physical or morphological changes, not chemical reaction. It is classifiable under tariff item 3904.61.00.
Micronized PTFE Powder
Ultra-fine ground polytetrafluoroethylene (PTFE) powder (1-20 micron) used as a lubricant additive in engineering plastics. This pure PTFE powder in primary form meets the 95% monomer content threshold, qualifying for tariff item 3904.61.00.
PTFE Aerospace Grade Resin
Polytetrafluoroethylene (PTFE) resin meeting aerospace specifications (AMS 3660) for seals and bearings. This specification-grade pure PTFE polymer in primary form is classifiable under tariff item 3904.61.00, as the specifications do not alter its chemical composition.
PTFE Chemical Processing Grade
High chemical resistance polytetrafluoroethylene (PTFE) resin for lining reactors and tanks. This pure resin in primary form qualifies under tariff item 3904.61.00 as a fluoropolymer, meeting the 95% monomer content rule.
PTFE Dispersion Powder
Coagulated polytetrafluoroethylene (PTFE) powder from aqueous dispersion polymerization, used in coatings and additives. This product comprises 100% PTFE and is in primary powder form, meeting the criteria for tariff item 3904.61.00.
PTFE Fine Powder Resin
Micronized polytetrafluoroethylene (PTFE) fine powder (average particle size 0.2-10 microns) for paste extrusion into wires and tubes. This pure PTFE in primary form exceeds 95% monomer content, falling under tariff item 3904.61.00.
PTFE Food Contact Compliant Resin
FDA-compliant polytetrafluoroethylene (PTFE) resin for food processing equipment components. This pure PTFE resin meets the 95% monomer content rule and is in primary form, qualifying for tariff item 3904.61.00.
PTFE for Electrical Insulation
Low dielectric loss polytetrafluoroethylene (PTFE) resin for wire insulation extrusion. This pure PTFE resin in primary form meets the ≥95% monomer content rule, qualifying for tariff item 3904.61.00.
PTFE Molding Powder
Free-flowing polytetrafluoroethylene (PTFE) molding powder for isostatic pressing into billets. This pure PTFE powder in primary form has documented 95%+ monomer composition, qualifying for tariff item 3904.61.00.
PTFE Pellets for Injection Molding
High-molecular-weight polytetrafluoroethylene (PTFE) pellets designed for compression and injection molding applications. This unfilled PTFE with ≥95% monomer units in primary pellet form meets the criteria for tariff item 3904.61.00.
PTFE Pre-Sintered Powder
Partially sintered polytetrafluoroethylene (PTFE) powder for improved green strength in molding. Thermal processing does not constitute chemical modification, so this remains classifiable under tariff item 3904.61.00 as pure PTFE in primary form.
Virgin Polytetrafluoroethylene Resin
Pure polytetrafluoroethylene (PTFE) resin in granular form, consisting of 100% PTFE monomer units, used as a base material for molding into sheets, rods, or other shapes. It meets the 'po' (polymer) criteria and falls under tariff item 3904.61.00 as polytetrafluoroethylene in primary forms.