Industrial Silica Filament Cloth for Expansion Joints
Chemically bonded, uncolored silica filament fabric (>93% SiO2) for high-temperature expansion joints in piping systems. Falls under HTS 7019.72.40.30 as other closed fabrics of ultra-high purity silica filaments. Withstands thermal cycling in petrochemical plants.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If imported as yarn or roving rather than fabric
Chapter progression classifies yarns before finished fabrics.
If narrow woven fabrics under 30cm width
Dimension-based subheading for narrow variants of closed fabrics.
Not sure which classification is right?
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Import Tips & Compliance
• Certify pressure/temperature ratings with silica analysis; use specific invoice descriptions avoiding 'glass cloth' ambiguity
• Pitfall: bulk packaging mistaken for raw yarn under 7019.11
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