3904.61.00.90/Micronized PTFE Powder/Mexico

Micronized PTFE Powder from Mexico

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.

Duty Rate — Mexico → United States

5.8%

Rate breakdown

9903.03.030%Articles the product of any country, as provided for in subdivision (aa)(ii) of U.S. note 2 to this subchapter

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Import Tips

• 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