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Silica Filament Plain Weave Fabric for Aerospace Insulation from Mexico

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.

Duty Rate — Mexico → United States

17.3%

Rate breakdown

9903.05.5510%Except for products described in headings 9903.05.85–9903.05.92 and 9903.05.94, articles the product of Mexico, as provided for in U.S. note 52 to this subchapter

Import Tips

• Verify silica content certification exceeding 93% via lab analysis reports to confirm HTS 7019.64.40.30 classification

• Ensure documentation specifies plain weave, mechanical bonding, and coating/lamination to avoid misclassification as yarn or roving