High-Temp Silica Fabric for Kiln Seals
Woven from continuous filaments with silica content >93%, this colored chemically bonded fabric is specified under HTS 7019.72.90.30. It serves as durable seals for industrial kilns, resisting thermal shock and chemical exposure. The closed fabric structure prevents fiber shedding in high-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 open weave rather than closed fabric
Open weave fabrics classify under separate 'other' subheadings from closed fabrics.
If used in refractory compositions
Incorporation into refractory bricks moves to Chapter 69 ceramic products.
If processed into semi-finished mats
Further processing beyond basic fabric leads to 'other articles' of glass fibers.
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Import Tips & Compliance
• Submit kiln end-use affidavits if requested; test for chemical bonding per Chapter notes; avoid misdeclaring as generic textile to prevent penalties
Related Products under HTS 7019.72.90.30
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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
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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.