7019.72.40 - Other

This HTS classification, 7019.72.40, pertains to "Other" closed fabrics of glass fibers, not colored, that do not fall under the specific description of fiberglass tire cord fabric. These fabrics are derived from glass fibers and are characterized by their closed weave structure. The classification focuses on fabrics that are chemically bonded and form a closed fabric, excluding open or mesh structures that might be classified elsewhere.

Distinguishing this category from its sibling, 7019.72.30.00, is crucial. While both are under "Chemically bonded fabrics," 7019.72.40 specifically excludes the highly specialized fiberglass tire cord fabric described in the sibling category. The sibling is defined by precise filament diameter and a specific impregnation treatment intended for adhesion to polymeric compounds, particularly in tire construction. In contrast, 7019.72.40 encompasses a broader range of chemically bonded, closed glass fiber fabrics that do not meet these specific technical requirements for tire cord.

The subcategories under 7019.72.40.40 provide further granularity. 7019.72.40.30 specifically covers silica filament fabric, highlighting a high silica content (greater than 93 percent) as a defining characteristic. The remaining items within this general "Other" category, not meeting the silica filament criterion, are then captured under the residual category of 7019.72.40.60. This hierarchical structure allows for precise classification based on material composition and specific performance characteristics beyond the general "other" designation.