3921.13.50.00 - Other 🖩

This HTS code covers cellular plates, sheets, film, foil, and strip made from polyurethanes. These materials are characterized by the presence of open or closed cells within their structure, giving them properties such as insulation, cushioning, or buoyancy. Examples include polyurethane foam sheets used for packaging, insulating panels, or flexible foam materials for upholstery.

It is important to distinguish this category from sibling categories. For instance, cellular products of polyurethanes that are combined with textile materials would be classified under the sibling entry, as the presence of integrated textile components dictates a separate classification. This code specifically addresses polyurethane cellular forms where textile integration is absent or incidental.

As this is a leaf node, there are no further subcategories to introduce. Classification within HTS 3921.13.50.00 is determined by the material being cellular polyurethane in sheet or strip form, without the primary characteristic of being combined with textile materials. The classification relies on the physical form and the fundamental composition of polyurethane.