Microporous Polyethylene Breathable Film from Japan
This is a cellular microporous polyethylene film designed for breathable applications, allowing vapor transmission while blocking liquids. It falls under HTS 3921.19.0010 as it is a microporous sheet of polyethylene, classified as 'other plastics' cellular plates, sheets, film with microvoids formed during extrusion.
Duty Rate — Japan → United States
12.5%
Rate breakdown
9903.05.4912.5%Except for products described in headings 9903.05.85–9903.05.92, articles the product of Japan, with an ad valorem (or ad valorem equivalent) rate of duty under column 1 less than 12.5 percent, as provided for in U.S. note 52 to this subchapter
Import Tips
• Verify microporosity through lab testing (e.g
• water vapor transmission rate >300g/m²/24hr) to confirm classification under 3921.19.0010
• Provide manufacturer specs on polymer content ensuring polyethylene monomers exceed 95% by weight per subheading note (a)(1)
• Avoid misclassification as non-cellular film under 3920.10; document cellular structure via SEM images or density <0.94 g/cm³