3920.62.00.50/Metallized PET Window Insulation Film/Japan

Metallized PET Window Insulation Film from Japan

Thin metallized polyethylene terephthalate (PET) film used for insulating windows to reduce heat loss and block UV rays. It meets HTS 3920.62.0050 as noncellular, unsupported metallized PET film, classified under poly(ethylene terephthalate) per subheading rules where PET monomers exceed 95% by weight. Primarily imported in rolls for residential DIY application.

Duty Rate — Japan → United States

14.2%

Rate breakdown

9903.03.0110%Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter

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Import Tips

• Verify PET monomer content exceeds 95% by weight via lab testing to confirm classification under 3920.62 per subheading note (a)(1)

• Declare metallization as a thin vacuum-deposited layer (not laminated support) to avoid reclassification to 3920.63 or 3921

• Provide supplier specs on thickness (<0.10mm typical) and non-reinforced status; common pitfall is mislabeling as 'foil' triggering aluminum duties