Silica Fabric for Furnace Curtains
Uncolored plain weave silica filament fabric (>93% SiO2) designed for high-temperature furnace curtains. HTS 7019.63.40.30 applies to this closed woven, mechanically bonded fabric without coatings. High silica content ensures >1600°C resistance.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If for open weave construction
Open weave glass fabrics classified separately from closed weave in 7019.61
If sold as pre-formed furnace components
Fabric articles of specific shapes move from yarn/fabric headings to 7019.40
If specific statistical width category
Different width ranges have separate statistical reporting suffixes
Not sure which classification is right?
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Import Tips & Compliance
• Include test reports proving silica purity; ensure no metal coatings which change classification; watch for undervaluation penalties on specialized industrial fabrics
Related Products under HTS 7019.63.40.30
Silica Filament Plain Weave Fabric
This is a closed woven, plain weave fabric made from silica filaments with over 93% silica content, not colored, not coated or laminated. It falls under HTS 7019.63.40.30 as a mechanically bonded, non-colored silica filament fabric used primarily for high-temperature industrial applications. The high silica purity provides exceptional thermal resistance.
High-Purity Silica Woven Sheeting
High-purity silica woven sheeting (>93% silica filaments) in plain weave, used for thermal barriers in aerospace. Classified under HTS 7019.63.40.30 due to its specific silica filament composition and lack of coloring or lamination. Mechanically bonded construction meets chapter requirements.
Thermal Shield Silica Textile
Plain weave silica filament textile (>93% silica) for thermal shielding in rocket engines. Falls under HTS 7019.63.40.30 as non-colored, non-laminated mechanically bonded fabric. Meets fused silica definition throughout schedule.
Kiln Lining Silica Woven Fabric
Woven silica fabric for kiln linings made from >93% silica filaments, plain weave, uncolored. HTS 7019.63.40.30 covers this specific high-purity mechanically bonded glass fabric category. Provides thermal protection up to 1650°C.
Aerospace Silica Heat Blanket Fabric
Silica filament fabric (>93% SiO2) plain weave for aerospace heat blankets, mechanically bonded. Precisely matches HTS 7019.63.40.30 specifications for non-colored, non-laminated closed weave. Critical for re-entry vehicle protection.
Industrial Furnace Silica Curtain Material
Plain weave, uncolored silica filament fabric (>93% silica) for industrial furnace curtains. HTS 7019.63.40.30 classification based on high silica content and mechanically bonded plain weave construction without lamination.