7019.63.30.00 - Fiberglass tire cord fabric woven from electrically nonconductive continuous fiberglass filaments 9 microns in diameter to 11 microns in diameter and impregnated with resorcinol formaldehyde latex treatment for adhesion to polymeric compounds (622)

This HTS category, 7019.63.30.00, specifically covers fiberglass tire cord fabric that is woven from continuous glass filaments. These filaments are characterized by their specific diameter, ranging from 9 to 11 microns. Crucially, the fabric is treated with a resorcinol formaldehyde latex for enhanced adhesion to polymeric compounds. This treatment is essential for its application in tire manufacturing, where it forms a critical reinforcing component.

Distinguishing this category from its sibling, 7019.63.40 ("Other"), is the precise nature of the fiberglass treatment. While 7019.63.40 would encompass other woven fiberglass fabrics within this sub-grouping that do not meet the specific treatment criteria outlined here, 7019.63.30.00 is reserved for those fabrics that are explicitly impregnated with resorcinol formaldehyde latex for improved compatibility with polymeric materials.

As this is a leaf node in the HTS classification structure, there are no further subcategories to explore. Classification under 7019.63.30.00 hinges on the presence of woven continuous glass filaments within the specified diameter range and the application of the resorcinol formaldehyde latex treatment for the intended purpose of tire cord reinforcement. The absence of any of these defining characteristics would necessitate classification under a different, more appropriate HTS heading.