Microglass Bulk Filter Media Fiber from Canada
Fine-diameter microglass fibers in bulk for manufacturing HEPA filters and battery separators. Classifies under HTS 7019.90.51.20 as other bulk glass fibers, with silica content meeting glass wool criteria. Supplied uncompressed for custom web formation.
Duty Rate — Canada → United States
14.3%
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
• Document micron diameter (<5μm typical); use anti-static bulk bags
• Validate boric oxide <2% for glass wool status
• Avoid pre-matting that creates heading 7019 articles