High-Purity Silica Fabric for Industrial Furnace Curtains
A specialized plain weave fabric from >93% silica filaments, mechanically bonded and laminated with colored heat-resistant coating for furnace applications. Classified in HTS 7019.64.90.30 due to its closed weave structure, high silica purity, and protective lamination for extreme thermal exposure. Commonly used as protective curtains in high-temperature industrial furnaces.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If open weave or not plain weave
Different weave constructions like twill or satin classify under 'other' woven fabric subheadings.
If supplied as yarn rather than woven fabric
Unwoven silica filament yarns fall under yarn and roving headings rather than fabric classifications.
If considered glass wool per Chapter Note
Products meeting glass wool definition (silica <60% or specific oxide contents) classify in 6806.
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Import Tips & Compliance
• Provide furnace end-use certification to support thermal application claims during customs review
• Maintain records of weave type (plain weave) and mechanical bonding process to distinguish from non-woven fabrics
• Avoid common pitfall of improper weight declarations; ensure filament diameter specs match statistical reporting
Related Products under HTS 7019.64.90.30
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Colored Laminated Silica Cloth for Kiln Seals
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Coated Silica Woven Fabric for Fire Blanket Applications
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