3904.61.00 - Polytetrafluoroethylene (PTFE)

This HTS category, 3904.61.00, specifically covers polytetrafluoroethylene (PTFE) in its primary forms. PTFE is a synthetic fluoropolymer known for its exceptional non-stick properties, chemical inertness, and high thermal stability. It is widely used in applications ranging from cookware coatings and industrial seals to electrical insulation and medical devices. The classification under Chapter 39 signifies that these are unprocessed plastic materials or semi-finished products.

The distinction from its sibling category, 3904.69 (Other fluoropolymers), lies in the specific chemical composition. While 3904.69 would encompass other fluoropolymers like polyvinylidene fluoride (PVDF) or fluorinated ethylene propylene (FEP), this subheading is exclusively reserved for PTFE. This precise differentiation is crucial for accurate tariff application based on the distinct chemical makeup and resulting properties.

Within this subheading, two further subcategories exist to refine the classification of PTFE. The first, 3904.61.00.10, pertains to granular forms of PTFE, which may include additions of fillers or compounding agents to modify its characteristics. The second, 3904.61.00.90, accounts for all other forms of PTFE not specified as granular, ensuring comprehensive coverage of this versatile material. These subdivisions allow for more granular data collection and potential tariff variations based on the specific presentation and formulation of the PTFE.