3904.61.00.90 - Other

This HTS classification, 3904.61.00.90, covers polytetrafluoroethylene (PTFE) in primary forms that do not meet the specific criteria for granular forms, whether or not filled or compounded, classified under 3904.61.00.10. Therefore, this category encompasses PTFE not presented as granules. This includes, but is not limited to, PTFE in powder form (excluding granular), paste, or liquid dispersions, as well as sheet, film, rod, or other extruded or molded shapes that are not considered granular. The classification hinges on the physical form of the PTFE.

The primary distinction between this "Other" category and its sibling, 3904.61.00.10, lies solely in the physical presentation of the polytetrafluoroethylene. While 3904.61.00.10 specifically identifies granular PTFE, this classification is for all other primary forms of PTFE that are not granular. This ensures that all PTFE in its initial manufactured states are accounted for within the tariff schedule, with the granular form being itemized separately due to its specific use and handling characteristics.

As this classification is a leaf node, there are no further subcategories. The classification is determined by whether the PTFE in its primary form is granular or not. If the material is in powder, paste, liquid dispersion, or other non-granular finished shapes, it will fall under this 3904.61.00.90 classification.