3921.13.15.00 - Other (229)

This HTS category, 3921.13.15.00, classifies cellular plates, sheets, film, foil, and strip of polyurethane that are combined with textile materials, specifically where man-made fibers predominate by weight over any other single textile fiber. These composite materials find application in various industries, often serving as insulating, cushioning, or protective layers. The polyurethane component is foamed or cellular, providing its characteristic lightweight and compressible properties, while the textile element contributes to structural integrity, strength, or surface finish.

Distinguishing this category from its sibling, 3921.13.11.00, which covers goods with over 70 percent by weight of plastics, is crucial. This distinction hinges on the weight composition of the textile material relative to the plastic. While 3921.13.11.00 focuses on a high plastic content, 3921.13.15.00 specifically addresses combinations where man-made fibers are the most significant textile component by weight, implying a potentially more balanced or even textile-predominant composition in certain instances, as long as man-made fibers are the single most substantial fiber type.

As a leaf node, this classification does not have further subdivisions. Therefore, accurate classification relies on a precise assessment of the material composition, confirming the presence of cellular polyurethane and the predominant nature of man-made fibers within the textile component by weight. Examples might include certain types of automotive upholstery, specialized packaging materials, or industrial insulation where a cellular plastic film is laminated to a fabric backing made predominantly of synthetic fibers like polyester or nylon.