PET Battery Separator Film
Microporous polyester film used as separators in lithium-ion batteries, classified 3920.69.00.00 if noncellular structure predominates despite porosity. Ensures electrolyte flow and safety.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If considered cellular due to microporosity
Functional porosity may qualify as cellular plastic structure.
If assembled into lithium-ion batteries
Complete electric accumulators shift to Chapter 85.
If polyolefin-based separators (most common)
PE/PP separators predominate; monomer rules apply per notes.
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Import Tips & Compliance
• Provide Gurley air permeability and shutdown temperature data for separator specs
• Confirm non-woven/microcellular vs. true noncellular for 3920 vs. 3921
Related Products under HTS 3920.69.00.00
Polyester Shrink Wrap Film
Biaxially oriented polyester film designed for shrink wrapping products, falling under 3920.69.00.00 as a non-reinforced, noncellular strip of other polyesters like PET. Used in consumer goods packaging for tight, protective wrapping.
Polyester Release Liner Film
Silicone-coated PET film used as release liner for adhesive tapes and labels, classified 3920.69.00.00 if coating is not self-adhesive or reinforcing. Protects adhesive until application.
Polyester Overlaminate Film
Clear PET overlaminate protective film for graphics and decals, 3920.69.00.00 as noncellular polyester strip without pressure-sensitive adhesive on import. Applied post-printing for durability.
Polyester Drafting Film for Graphic Arts
Matte polyester film sheets for technical drawings and blueprints, under 3920.69.00.00 as noncellular, unsupported polyester strips. Ink-receptive surface for CAD plotting and reproduction.
Polyethylene Terephthalate (PET) Packaging Film
Transparent PET film used for food packaging and labeling, classified under 3920.69.00.00 as it consists of polyethylene terephthalate, a common polyester, in noncellular sheet form without reinforcement or lamination. This HTS code covers other polyester films not specified elsewhere in the subheading.
Mylar Polyester Foil for Electrical Insulation
Thin Mylar (biaxially oriented PET) foil sheets used for insulating electrical components, classified in 3920.69.00.00 as noncellular polyester film not reinforced or combined. Provides dielectric strength in motors and transformers.