Ventilation Patch Microporous Polypropylene Film from China
Small microporous PP film patches for device housings allowing pressure equalization and preventing condensation. Classified under HTS 3921.19.0010 as microporous cellular PP sheets.
Duty Rate — China → United States
44%
Rate breakdown
9903.05.3112.5%Except for products described in headings 9903.05.85–9903.05.92, articles the product of China, as provided for in U.S. note 52 to this subchapter
9903.88.0225%Except as provided in headings 9903.88.12, 9903.88.17, 9903.88.20, 9903.88.54, 9903.88.59, 9903.88.61, 9903.88.63, 9903.88.66, 9903.88.67, 9903.88.68, 9903.88.69, or 9903.88.70, articles the product of China, as provided for in U.S. note 20(c) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(d)
Import Tips
• IP67/68 waterproof rating specs with acoustic impedance data support function
• Die-cut rolls remain film classification; pressure-sensitive adhesive doesn't change
• Volume shipments qualify better rates; avoid per-piece invoicing