Coated Silica Filament Cloth for Kiln Seals and Gaskets
Plain weave, mechanically bonded fabric of high-silica (>93%) filaments, laminated for sealing applications in kilns. HTS 7019.64.40.30 applies to this uncolored, closed woven product designed for non-reflecting thermal insulation. Its purity ensures minimal degradation in oxidizing atmospheres.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If first mechanically bonded as non-woven then laminated
Textile glass fiber non-wovens receive initial classification under 7019.31 before potential lamination.
If fired or sintered into refractory shapes post-weaving
Heat-processed into articles shifts to Chapter 69 refractories from raw glass fiber heading.
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Import Tips & Compliance
• Include weave density and filament diameter tests to distinguish from yarn under 7019.11/12
• Label as 'not for retail sale' if bulk; retail packs may trigger different statistical reporting
Related Products under HTS 7019.64.40.30
Silica Filament Plain Weave Fabric for Aerospace Insulation
This is a closed woven, plain weave fabric made from silica filaments with over 93% silica content, coated or laminated for enhanced durability. It falls under HTS 7019.64.40.30 as a mechanically bonded, uncolored silica filament fabric used primarily in high-temperature aerospace applications like engine compartments. The high silica purity provides exceptional thermal resistance up to 1650°C.
High-Purity Silica Woven Fabric for Industrial Furnace Linings
A laminated plain weave fabric from >93% silica filaments, mechanically bonded for strength in extreme heat environments. Classified in HTS 7019.64.40.30 due to its uncolored, coated woven structure meeting silica filament specs for thermal barriers in furnaces. Ideal for protecting steel structures in high-temperature industrial processes.
Silica Fabric Thermal Barrier for Exhaust Systems
Uncolored, plain weave silica filament fabric (>93% SiO2) with protective lamination for automotive exhaust heat shields. Fits HTS 7019.64.40.30 as a coated, mechanically bonded closed woven fabric for high-heat isolation. Conforms to fused silica inclusion per tariff schedule definitions.
Laminated Silica Weave for Fire Blanket Applications
Mechanically bonded plain weave fabric from >93% silica filaments, coated for fire protection gear linings. HTS 7019.64.40.30 covers this uncolored woven product retaining glass article character per heading 7006 note extension. Provides superior flame resistance without melting.