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HSChapter 39
U.S. imports of polytetrafluoroethylene (ptfe) in primary forms (HS 390461) totaled $12.1M in April 2026, traded with 29 countries.
Importers of Polytetrafluoroethylene (PTFE) in Primary Forms paid $1.6M in duties in April 2026 — an effective duty rate of 14% on $11.5M in dutiable value, based on actual customs collections rather than the published tariff schedule. Polytetrafluoroethylene (PTFE) in Primary Forms imports of $12.1M in April 2026 ran 32% above the year-to-date monthly average of $9.1M.
Last updated: April 2026 dataPTFE — commercially known under trade names such as Teflon — is a fluoropolymer with exceptional chemical inertness, a broad service temperature range, and the lowest coefficient of friction of any solid polymer, properties that drive demand in semiconductor processing equipment, chemical plant linings, aerospace seals, and medical devices. The US schedule subdivides the heading into granular PTFE (3904610010) and non-granular forms such as fine powder and aqueous dispersions (3904610090), with a legacy undivided line (3904610000) also present. India leads US import supply, followed by Japan and China — a supplier mix that reflects both cost-competitive Indian production and the technical specialization of Japanese fluoropolymer producers.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
Granular PTFE is a free-flowing powder produced by suspension polymerization, typically used for compression molding and ram extrusion of large billets. Non-granular forms include fine powder (produced by dispersion polymerization for paste extrusion of thin-wall tubing and wire insulation) and aqueous dispersions used for coating applications. The physical form and production method determine which 10-digit line applies, and suppliers should confirm the grade type on commercial invoices.
PTFE classified under heading 3904.61 has been subject to Section 301 tariffs when originating from China. Given that China is among the top suppliers under this heading, importers should verify the current tariff status and any available exclusions with a licensed customs broker before entry, as Section 301 lists and exclusion periods are subject to ongoing administrative review.
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Monthly import values over time
| Country | Imports | Exports | Balance |
|---|---|---|---|
| CHINA | $3.0M | $2.1M | -$877K |
| JAPAN | $2.6M | $709K | -$1.9M |
| NETHERLANDS | $1.0M | $2.0M | +$968K |
| INDIA | $1.9M | $140K | -$1.7M |
| MEXICO | $38K | $2.0M | +$1.9M |
HS10 import codes under this HS6 parent. Source: U.S. Harmonized Tariff Schedule.
| Code | Description | Import Value | Effective Tariff % | Duty Collected |
|---|---|---|---|---|
| 3904610090 | POLYTETRAFLUOROETHYLENE (PTFE), EXCEPT GRANULAR | $8.7M | 12.44% | $1.0M |
| 3904610010 | POLYTETRAFLUOROETHYLENE (PTFE), GRANULAR | $3.3M | 16.59% | $504K |
POLYTETRAFLUOROETHYLENE (PTFE), EXCEPT GRANULAR
POLYTETRAFLUOROETHYLENE (PTFE), GRANULAR
HS10 export codes under this HS6 parent. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 3904610000 | POLYTETRAFLUOROETHYLENE (PTFE) | $12.4M |
POLYTETRAFLUOROETHYLENE (PTFE)
806.0K kg
ARTICLES OF PLASTICS, NESOI
HS 392690
FLOOR, WALL, ETC COVERS, VINYL CHLORIDE POLYMERS
HS 391810
TABLEWARE AND KITCHENWARE OF PLASTICS
HS 392410
SACKS & BAGS (INCL CONES) OF POLYMERS OF ETHYLENE
HS 392321
HOUSEHOLD AND TOILET ARTICLES NESOI OF PLASTICS
HS 392490
PLATES, SHEETS ETC, NON-CELL ETC, POLYMER
HS 392010
| Port | Imports | Exports | Balance |
|---|---|---|---|
| NEWARK, NJ | $4.6M | $278K | -$4.3M |
| NEW YORK, NY | $1.6M | $1.4M | -$257K |
| CHICAGO, IL | $79K | $2.8M | +$2.7M |