High-Purity Silica Filament Woven Fabric
This woven fabric is made from continuous silica filaments with over 93% silica content, classified under HTS 7019.72.90.30 as a chemically bonded closed fabric that is colored. It offers exceptional thermal resistance and low thermal expansion, ideal for high-temperature applications. The high silica purity ensures minimal weight loss in extreme heat environments.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If uncolored
Uncolored silica filament fabrics fall under the uncolored subheading within the same chemically bonded category.
If silica content 93% or less
Fabrics with silica ≤93% are classified under 'other' glass filament fabrics, changing the statistical suffix.
If coated with plastics for textile reinforcement
Textile fabrics impregnated or coated with plastics shift to Chapter 59, regardless of fiber composition.
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Import Tips & Compliance
• Verify silica content certification exceeding 93% via lab analysis reports to avoid reclassification; declare color treatment process accurately; check for anti-dumping duties on certain silica textiles from specific origins
Related Products under HTS 7019.72.90.30
High-Silica Colored Filament Muffler Wrap
Chemically bonded closed fabric from colored >93% silica filaments, HTS 7019.72.90.30. Wraps high-performance exhaust mufflers, providing heat shielding and sound deadening at extreme temperatures. Automotive racing applications.
Silica Filament Foundry Mold Release Fabric
Colored, chemically bonded closed silica filament fabric (>93% SiO2), under HTS 7019.72.90.30. Used as release liner in metal foundry molds, preventing adhesion at molten temperatures. High purity prevents contamination.
Extreme Heat Silica Fabric for Flanges
HTS 7019.72.90.30 covers this colored closed chemically bonded fabric of >93% silica filaments. Cut into gaskets for high-pressure steam flanges in power generation. Maintains seal integrity beyond 1000°C.
Silica Filament High-Temp Filter Cloth
This specialized colored fabric from chemically bonded >93% silica filaments is HTS 7019.72.90.30 closed fabric. Functions as filter media in hot gas filtration systems for cement kilns. Fine weave captures particulates at elevated temperatures.
Colored Silica Fabric for Incinerator Liners
Chemically bonded closed weave fabric of colored filaments >93% silica content, HTS 7019.72.90.30. Lines waste incinerators, protecting metal structures from corrosive hot gases. Exceptional service life in oxidative atmospheres.
Industrial Silica Filament Bellows Fabric
This >93% silica content colored fabric, chemically bonded into closed structure, is HTS 7019.72.90.30. Forms flexible bellows for high-temperature machinery connections, flexing without cracking. Used in steel mills and glass manufacturing.