High-Purity Silica Fabric for Furnace Curtains from Mexico
Uncolored, closed-weave silica filament fabric (>93% silica) used for protective curtains in high-temperature furnaces. Classified under HTS 7019.72.40.30 due to its chemically bonded structure and exceptional thermal stability. Ideal for aerospace and metallurgy applications requiring non-combustible barriers.
Duty Rate — Mexico → United States
17.3%
Rate breakdown
9903.05.5510%Section 301 (forced labor) — additional 10% ad valorem on products of Mexico
Import Tips
• Include manufacturer specs confirming filament composition and weave type (closed fabric); declare as non-apparel to avoid textile chapter confusion
• Common pitfall: undervaluation based on weight rather than thermal performance specs