Thermal Shield Silica Textile from Canada
Plain weave silica filament textile (>93% silica) for thermal shielding in rocket engines. Falls under HTS 7019.63.40.30 as non-colored, non-laminated mechanically bonded fabric. Meets fused silica definition throughout schedule.
Duty Rate — Canada → United States
17.3%
Rate breakdown
9903.05.2910%Section 301 (forced labor) — additional 10% ad valorem on products of Canada
Import Tips
• Classify based on filament composition not end-use; maintain chain-of-custody for silica purity docs; common error is confusing with aramid fabrics in Chapter 54