7019.69.40 - Other

This HTS category, 7019.69.40, encompasses "Other" mechanically bonded fabrics made of glass fibers that are not colored. These fabrics are characterized by the method of their construction, where glass filaments are physically interlocked rather than being woven or knitted. This broad category serves as a catch-all for mechanically bonded glass fiber fabrics that do not fit into more specific subheadings under heading 7019.69.

It is important to distinguish this category from its sibling, 7019.69.30.00. The sibling category specifically covers fiberglass tire cord fabric with precise filament diameter specifications (9 to 11 microns) that has been treated with a resorcinol formaldehyde latex compound for adhesion to polymeric materials. In contrast, 7019.69.40 is for mechanically bonded glass fiber fabrics that are not colored and do not meet the specific requirements of the tire cord fabric classification.

Within this "Other" category, further subdivisions exist to refine classification based on physical characteristics. Subcategories are provided to distinguish between fabrics based on their weight per square meter and, in one instance, filament diameter. This granular approach allows for precise identification of specific types of mechanically bonded glass fiber fabrics that are not colored, ensuring accurate customs declarations and duty assessments.