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.
Import Duty Rates by Country of Origin
| Origin Country | MFN Tariff | Surtaxes | Total Effective Rate |
|---|---|---|---|
| 🇨🇳China | Free | — | Free |
| 🇲🇽Mexico | Free | — | Free |
| 🇺🇸United States | Free | — | Free |
| 🇩🇪Germany | Free | — | Free |
| 🇯🇵Japan | Free | — | Free |
More Specific Codes
This product may fall under a more specific subheading:
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If the granules are processed into finished medical device components
Articles of plastics, including medical devices, are classified in Chapter 39 only if not more specifically covered elsewhere.
Not sure which classification is right?
The Tariff Assistant works through the GRI rules on your specific product to reach the right tariff item — and can price the duty on it in the same conversation.
Import Tips & Compliance
• Ensure the granules are not fabricated into medical devices, which would fall under Chapter 90
• Provide documentation of purity, such as a certificate of analysis, to support classification
• If the product is sterilized or specially packaged, confirm it remains in primary form
Related Products 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.
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.