High-Silica Glass Yarn from Canada
High-silica (>80% SiO2) yarn for thermal protection in aerospace and furnace applications. Classifies under HTS 7019.13.35.00 as 'other' glass fiber yarn. Leached composition provides extreme heat resistance.
Duty Rate — Canada → United States
14.2%
Rate breakdown
9903.05.2910%Except for products described in headings 9903.05.85–9903.05.93, articles the product of Canada, as provided for in U.S. note 52 to this subchapter
Import Tips
• Submit silica content analysis (ASTM C169) to distinguish from standard compositions
• Handle as hazardous material if fiber length <6 microns for respiratory protection
• Mark 'not for apparel/textile use' to prevent Chapter 62 misrouting