PTFE Filler Powder
PTFE Filler Powder is a fine polytetrafluoroethylene powder in primary form, used as a functional filler in thermoset composites and rubber compounds. It meets the Chapter 39 definition of plastics in primary forms (powder) and is classified under tariff item 3904.61.00 as polytetrafluoroethylene, not further processed into articles.
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 |
PGA flags
No agency flag on this HTS number in the CBSA Single Window matching criteria.
CBSA Single Window matching criteria, unknown
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 powder is a fluoropolymer other than polytetrafluoroethylene (e.g., a copolymer with less than 95% PTFE monomer)
This heading covers other fluoro-polymers in primary forms when the PTFE monomer content does not meet the 95% threshold.
If the powder is processed into plates, sheets, film, foil or strip
Once PTFE is transformed into a semi-finished form like film or sheet, it falls under Chapter 39's plates and sheets heading.
If the product is a silicone-based powder, not PTFE
Silicones in primary forms are classified separately under heading 3910, regardless of similar use as fillers.
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 powder is in primary form (e.g
• powder, granules) and not fabricated into articles, as that would change classification
• Keep a technical data sheet showing the PTFE monomer content is 95% or more by weight to support the tariff classification
• Declare the correct 8-digit code 3904.61.00 on your CBSA import documents
Related Products under Tariff item 3904.61.00
Algoflon PTFE Molding Powder
Algoflon PTFE free-flow molding powder for isostatic pressing of complex shapes is classified under 3904.61.00. This primary form meets subheading purity rules with high bulk density. It is a standard industrial grade resin for precision molding.
Bronze-Filled Granular PTFE Compound
Bronze-filled granular PTFE compound, where PTFE remains the predominant polymer by weight, is a primary form of polytetrafluoroethylene. The bronze powder acts as a filler, enhancing load-bearing capacity for seals and thrust washers. It falls under tariff item 3904.61.00 as a fluoro-polymer in primary form.
Carbon-Filled Granular PTFE for Bearings
Carbon-filled granular PTFE for bearings, with carbon powder at 10-15% to improve wear resistance and conductivity, maintains over 95% PTFE monomer content. As a granular primary form, it is classified under 3904.61.00. The carbon filler does not alter the polymer's primary classification.
Ceramic-Filled Granular PTFE for Valves
Ceramic-filled granular PTFE for valves, with 20% ceramic filler for abrasion resistance, keeps PTFE as the dominant polymer. This granular primary form is classified under 3904.61.00. The ceramic additive enhances hardness without changing the polymer's tariff identity.
Extrusion-Grade PTFE Resin
Extrusion-grade polytetrafluoroethylene (PTFE) resin in granular form, optimized for ram extrusion into rods and profiles. It is a pure PTFE polymer in primary form, meeting the 95% monomer content rule for classification under this tariff item.
Fluon PTFE Molding Powder
Fluon brand PTFE molding powder for compression molding of bearings and seals is classified under 3904.61.00. This standard industrial grade resin meets the 95% purity rule. It is a primary form suitable for various molding processes.