Micronized PTFE Powder
Micronized polytetrafluoroethylene powder used as a dry lubricant or filler in inks and coatings. HTS 3904.61.00.90 covers this 'Other' primary form PTFE with ≥95% monomer content per subheading rules. Remains in primary forms, not end-use products.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If chemically modified (e.g., irradiated)
Modified polymers go to 'Other' or silicones heading per note (a)(3).
If mixed with dispersants or solvents
Becomes chemical preparation, not pure primary polymer.
If compacted into pellets for retail sale
Processed shapes exceed primary form; becomes plates/sheets.
Not sure which classification is right?
The Tariff Assistant works through the GRI rules on your specific product to reach the right HTS code — and can price the duty on it in the same conversation.
Import Tips & Compliance
• Include scanning electron microscopy (SEM) reports confirming micron particle size for primary form verification
• Label as 'not for medical use' if applicable to avoid stricter FDA import scrutiny
• Avoid declaring end-use (e.g
• 'for ink') as it risks reclassification to finished preparations
Related Products under HTS 3904.61.00.90
Hostaflon PTFE Standard Powder
Hostaflon standard viscosity PTFE powder for ram extrusion of rods and tubes. Classified 3904.61.00.90 as other primary form PTFE per Chapter 39 polymer notes. Free-flowing powder grade.
Algoflon PTFE Molding Powder
Algoflon PTFE free-flow molding powder for isostatic pressing of complex shapes. Under 3904.61.00.90 as other polytetrafluoroethylene primary forms per subheading purity rules. High bulk density grade.
Teflon PTFE Fine Powder
Teflon branded fine powder PTFE for thin-film applications and coatings. 3904.61.00.90 covers this 'Other' primary form fluoropolymer per 95% monomer standard. Trademarked industrial resin.
PTFE Filler Powder
PTFE powder used as functional filler in thermoset composites and rubbers. HTS 3904.61.00.90 'Other' for pure primary form PTFE meeting Chapter notes. Standard filler grade.
Neoflon PTFE Molding Powder
Neoflon high-performance PTFE molding powder for semiconductor wafer carriers. Under 3904.61.00.90 as other primary PTFE per purity requirements. Cleanroom grade resin.
PTFE High Bulk Density Powder
High bulk density PTFE powder for automatic molding equipment. Classified 3904.61.00.90 'Other' primary form polytetrafluoroethylene. 550+ kg/m³ density grade.