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): > Chemically bonded fabrics: > Other closed fabrics: > 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 7019.72.40.30
Silica Filament Woven Fabric for Kiln Insulation
High-purity woven fabric made from silica filaments with over 93% silica content, designed for thermal insulation in industrial kilns and furnaces. It falls under HTS 7019.72.40.30 as a chemically bonded, closed, uncolored silica filament fabric used in high-temperature environments. The fabric's structure provides excellent heat resistance up to 1650°C.
High-Purity Silica Fabric for Furnace Curtains
Uncolored, closed-weave silica filament fabric (>93% silica) used for protective curtains in high-temperature furnaces. Classified under HTS 7019.72.40.30 due to its chemically bonded structure and exceptional thermal stability. Ideal for aerospace and metallurgy applications requiring non-combustible barriers.
Silica Textile for Thermal Protection Systems
Woven fabric from silica filaments exceeding 93% silica, engineered for spacecraft re-entry thermal shields and protection systems. HTS 7019.72.40.30 applies to this uncolored, chemically bonded closed fabric due to its high silica purity and heat-resistant properties. Used in demanding aerospace environments.
Industrial Silica Filament Cloth for Expansion Joints
Chemically bonded, uncolored silica filament fabric (>93% SiO2) for high-temperature expansion joints in piping systems. Falls under HTS 7019.72.40.30 as other closed fabrics of ultra-high purity silica filaments. Withstands thermal cycling in petrochemical plants.
Silica-Based Fire Blanket Fabric
High-silica (>93%) filament woven fabric for manufacturing fire blankets in industrial safety applications. HTS 7019.72.40.30 covers this uncolored, chemically bonded closed fabric due to its filament composition and purity. Provides superior fire resistance over standard glass fibers.
Ultra-High Temperature Silica Veil Fabric
Lightweight veil-style closed fabric from >93% silica filaments for composite reinforcement in extreme heat applications. Classified in HTS 7019.72.40.30 as chemically bonded, uncolored silica filament fabric. Used in missile components and turbine engines.
Silica Filament Fabric for Foundry Molds
Chemically bonded closed-weave fabric (>93% silica content) lining foundry molds and ladles for molten metal containment. HTS 7019.72.40.30 designation reflects its uncolored, high-purity filament structure. Essential for steel and aluminum casting operations.