Fiberglass Battery Separator Fabric from Mexico
Thin, chemically bonded non-woven fabric of uncolored glass microfibers serving as separators in lead-acid batteries. Classified in HTS 7019.72.40 for other not colored chemically bonded glass fiber closed fabrics. Ensures electrolyte flow and prevents short circuits.
Duty Rate — Mexico → United States
17.3%
Rate breakdown
9903.05.5510%Except for products described in headings 9903.05.85–9903.05.92 and 9903.05.94, articles the product of Mexico, as provided for in U.S. note 52 to this subchapter
Import Tips
• Include purity certificates for electrical grade glass; note microporous structure in docs
• Avoid pitfall: classifying as plastic under 3920 if resin-impregnated