Microglass Bulk Filter Media Fiber from Japan
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 — 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
• 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