Silica filament fabric of filaments with silica content greater than 93 percent (622)
Glass fibers (including glass wool) and articles thereof (for example, yarn, rovings, woven fabrics): > Mechanically bonded fabrics: > Closed woven fabrics, plain weave, of yarns, coated or laminated: > Other: > Not colored: > Other > Silica filament fabric of filaments with silica content greater than 93 percent (622)
Duty Rate (from China)
Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
Except as provided in headings 9903.88.13, 9903.88.18, 9903.88.33, 9903.88.34, 9903.88.35, 9903.88.36, 9903.88.37, 9903.88.38, 9903.88.40, 9903.88.41, 9903.88.43, 9903.88.45, 9903.88.46, 9903.88.48, 9903.88.56, 9903.88.64, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(e) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(f)
Products classified under HTS 7019.64.40.30
Silica Filament Plain Weave Fabric for Aerospace Insulation
This is a closed woven, plain weave fabric made from silica filaments with over 93% silica content, coated or laminated for enhanced durability. It falls under HTS 7019.64.40.30 as a mechanically bonded, uncolored silica filament fabric used primarily in high-temperature aerospace applications like engine compartments. The high silica purity provides exceptional thermal resistance up to 1650°C.
High-Purity Silica Woven Fabric for Industrial Furnace Linings
A laminated plain weave fabric from >93% silica filaments, mechanically bonded for strength in extreme heat environments. Classified in HTS 7019.64.40.30 due to its uncolored, coated woven structure meeting silica filament specs for thermal barriers in furnaces. Ideal for protecting steel structures in high-temperature industrial processes.
Coated Silica Filament Cloth for Kiln Seals and Gaskets
Plain weave, mechanically bonded fabric of high-silica (>93%) filaments, laminated for sealing applications in kilns. HTS 7019.64.40.30 applies to this uncolored, closed woven product designed for non-reflecting thermal insulation. Its purity ensures minimal degradation in oxidizing atmospheres.
Silica Fabric Thermal Barrier for Exhaust Systems
Uncolored, plain weave silica filament fabric (>93% SiO2) with protective lamination for automotive exhaust heat shields. Fits HTS 7019.64.40.30 as a coated, mechanically bonded closed woven fabric for high-heat isolation. Conforms to fused silica inclusion per tariff schedule definitions.
Laminated Silica Weave for Fire Blanket Applications
Mechanically bonded plain weave fabric from >93% silica filaments, coated for fire protection gear linings. HTS 7019.64.40.30 covers this uncolored woven product retaining glass article character per heading 7006 note extension. Provides superior flame resistance without melting.