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.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If containing colored filaments
Colored variants of chemically bonded closed fabrics fall under the colored subheading.
If for nonwovens not chemically bonded as filaments
Impregnated, coated, or laminated nonwovens shift to Chapter 56 if lacking filament weave structure.
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Import Tips & Compliance
• Include manufacturer specs confirming filament composition and weave type (closed fabric); declare as non-apparel to avoid textile chapter confusion
• Common pitfall: undervaluation based on weight rather than thermal performance specs
Related Products 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.
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.