PTFE Pre-Sintered Powder
Partially sintered polytetrafluoroethylene powder for improved green strength in molding. Remains HTS 3904.61.00 as thermal processing doesn't constitute chemical modification.
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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 fully sintered >90% density
Dense forms become non-primary plastic shapes.
If sintering aids added
Additive-modified polymers use 'Other' classification.
If molding press components
Machinery parts have separate classification.
Not sure which classification is right?
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Import Tips & Compliance
• Document thermal history to distinguish from fully sintered articles
• Measure crystallinity to confirm primary polymer status
Related Products under HTS 3904.61.00
PTFE Food Contact Compliant Resin
FDA-compliant polytetrafluoroethylene resin for food processing equipment components. Meets HTS 3904.61.00 as pure PTFE with required extractive limitations.
PTFE Chemical Processing Grade
High chemical resistance polytetrafluoroethylene for lining reactors and tanks. Pure resin form qualifies under HTS 3904.61.00 fluoropolymer heading.
High-Bulk Density PTFE
Polytetrafluoroethylene resin with engineered high bulk density (0.8+ g/cc) for automated molding. Pure PTFE composition qualifies under HTS 3904.61.00 primary polymer provisions.
PTFE for Electrical Insulation
Low dielectric loss polytetrafluoroethylene resin for wire insulation extrusion. Meets HTS 3904.61.00 as ≥95% pure PTFE monomer in primary form.
PTFE Aerospace Grade Resin
Polytetrafluoroethylene meeting aerospace specifications (AMS 3660) for seals and bearings. HTS 3904.61.00 classification as specification-grade pure PTFE polymer.
Virgin Polytetrafluoroethylene Resin
Pure polytetrafluoroethylene (PTFE) resin in granular form, consisting of 100% PTFE monomer units, used as a base material for molding into sheets, rods, or other shapes. It falls under HTS 3904.61.00 as it meets the 'poly' prefix requirement of 95% or more PTFE content by weight in primary form.