Ceramic-Filled Granular PTFE for Valves
Granular PTFE with 20% ceramic filler for abrasion-resistant valve seats, PTFE base polymer dominant. HTS 3904.61.00.10 granular filled fluoropolymer. High hardness for flow control applications.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If high ceramic content crucibles
Ceramic matrix with polymer filler classifies as ceramic ware.
If finished valve seat preforms
Machined articles go to other plastic articles.
If valve component sets
Assembled valve parts classify under taps/valves heading.
Not sure which classification is right?
Our AI classifier can analyze your specific product and recommend the correct HTS code with confidence.
Import Tips & Compliance
• Specify ceramic type/composition in entry summary; watch for ceramic import duties if misdeclared
• Pitfall: Chapter 69 if ceramic predominant
Related Products under HTS 3904.61.00.10
Granular Polytetrafluoroethylene (PTFE) Resin
Pure granular PTFE resin, consisting of polytetrafluoroethylene polymer with monomer units contributing over 95% by weight, used as a base material for molding high-performance parts. Classified under HTS 3904.61.00.10 as granular PTFE in primary form, not chemically modified or blended beyond the polymer series criteria. Ideal for compression molding into bearings, seals, and valve components.
Glass-Filled Granular PTFE Compound
Granular PTFE compounded with 15-25% glass fiber for enhanced mechanical strength, where PTFE remains the predominant polymer (>95% monomer content). Falls under HTS 3904.61.00.10 as filled granular fluoropolymer in primary form per statistical note 1. Commonly used in injection molding for pump housings and electrical insulators.
Carbon-Filled Granular PTFE for Bearings
Granular PTFE filled with carbon powder (10-15%) to improve wear resistance and conductivity, maintaining >95% PTFE monomer content. HTS 3904.61.00.10 covers this compounded granular form for primary processing into self-lubricating bearings. Used in automotive and aerospace applications.
Virgin Granular PTFE Fine Grade
Unfilled fine granular PTFE resin (particle size 30-50 microns) for precision molding, pure polymer meeting 95%+ monomer rule. Classified in HTS 3904.61.00.10 as granular primary form fluoropolymer. Suited for chemical-resistant linings and wire coatings.
Bronze-Filled Granular PTFE Compound
Granular PTFE compounded with 40% bronze powder for high load-bearing seals and thrust washers, PTFE predominant per weight rules. HTS 3904.61.00.10 for filled granular fluoropolymers in primary form. Aerospace and oilfield applications.
PTFE Granules for Medical Grade Applications
USP Class VI compliant granular PTFE, unfilled and biocompatible for molding medical device components like implants. Meets HTS 3904.61.00.10 as pure granular primary fluoropolymer. Sterilizable and low extractables.