High-Purity Silica Filament Woven Fabric
This is a mechanically bonded woven fabric made from silica filaments with over 93% silica content, classified under HTS 7019.62.40.30 as a closed fabric of rovings not colored. It is designed for high-temperature applications due to its exceptional thermal resistance and low thermal expansion.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If of glass filaments with ≤93% silica content
Lower silica content shifts to other non-colored mechanically bonded fabrics in the same subheading group.
If mineral wool not meeting glass wool definition
Fails Chapter 70 note for glass wool (SiO2 <60% or lacking alkaline/boric oxides), falling to mineral wools.
If colored during production
Coloring moves it from 'not colored' to colored fabrics in parallel subheadings.
Not sure which classification is right?
The Tariff Assistant works through the GRI rules on your specific product to reach the right HTS code — and can price the duty on it in the same conversation.
Import Tips & Compliance
• Verify silica content certification exceeding 93% via lab analysis to confirm HTS 7019.62.40.30 classification
• Ensure documentation proves mechanical bonding and non-colored status to avoid misclassification
Related Products under HTS 7019.62.40.30
Silica Roving Closed Weave Fabric
A closed fabric woven from rovings of silica filaments exceeding 93% silica, mechanically bonded for structural integrity under HTS 7019.62.40.30. Used in thermal insulation for industrial furnaces due to its high melting point.
Ultra-High Temperature Silica Fabric
Mechanically bonded closed fabric from >93% silica filaments, not colored, per HTS 7019.62.40.30, offering superior resistance to temperatures over 1000°C. Commonly applied in aerospace heat shields and fire blankets.
Silica Filament Thermal Barrier Fabric
Woven closed fabric of high-silica (>93%) rovings, mechanically bonded and uncolored, fitting HTS 7019.62.40.30 for its filament composition. Essential for engine compartment insulation in automotive and aviation sectors.
Industrial Furnace Lining Silica Fabric
Not colored, mechanically bonded closed fabric from silica filaments >93% SiO2 content under HTS 7019.62.40.30, providing durable high-heat lining for furnaces and kilns.
Aerospace Grade Silica Woven Roving Fabric
Closed, uncolored fabric of >93% silica filaments mechanically bonded rovings, HTS 7019.62.40.30, engineered for lightweight thermal protection in spacecraft re-entry systems.
Fire-Resistant Silica Filament Cloth
Mechanically bonded, not colored closed fabric from high-silica (>93%) filaments under HTS 7019.62.40.30, used in fire curtains and protective gear for extreme heat exposure.