Silica Filament Plain Weave Fabric for Aerospace Insulation from Japan
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 — Japan → United States
12.5%
Rate breakdown
9903.05.4912.5%Section 301 (forced labor) — Japan (col1 rate < 12.5 percent): MFN < 12.5% → total duty capped at 12.5%
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