Other
Other plates, sheets, film, foil and strip, of plastics. > Cellular: > Of other plastics > Other
Duty Rate (from China)
Products classified under Tariff item 3921.19.00.90
Battery Grade PP Microporous Membrane
>- High-purity microporous polypropylene membrane used as a lithium-ion battery separator, with controlled pore distribution. This is a cellular (microporous) sheet of polypropylene, which is not one of the named plastics in other subheadings of heading 39.21, so it falls under 3921.19.00 as "of other plastics."
3921.19.00Breathable PE Diaper Backing Film
>- Microporous polyethylene film used as a soft, breathable backsheet in disposable diapers. This is a cellular (microporous) sheet of polyethylene, which is not one of the named plastics in other subheadings of heading 39.21, so it falls under 3921.19.00 as "of other plastics."
3921.19.00Cellular ABS Sheets
Foamed acrylonitrile-butadiene-styrene (ABS) copolymer sheets for thermoforming applications. Since ABS is a copolymer where no single monomer unit contributes 95% or more by weight, it is classified under tariff item 3921.19.00 as a cellular sheet of 'other plastics'.
3921.19.00Cellular Acrylic Foam Tapes Base Sheets
>- Double-sided cellular acrylic polymer foam sheets used as a carrier for pressure-sensitive adhesive tapes. These sheets are cellular (foamed) and made of acrylic polymer, which is not one of the named plastics in other subheadings of heading 39.21, so they fall under tariff item 3921.19.00 as "of other plastics."
3921.19.00Cellular Acrylic Sheets
Foamed acrylic polymer sheets for signage and displays, with a cellular structure. As acrylic polymers are not specifically named in cellular subheadings, these sheets are classified under tariff item 3921.19.00 as 'of other plastics'.
3921.19.00Cellular Polyamide Foam Sheets
>- Cellular polyamide (nylon) foam sheets used for impact protection and vibration damping in machinery. Polyamide is not one of the named plastics in other subheadings of heading 39.21, and the cellular structure qualifies these sheets for classification under 3921.19.00 as "of other plastics."
3921.19.00Cellular Polycarbonate Foam Panels
>- Lightweight cellular polycarbonate foam panels used for aerospace and architectural glazing applications. Polycarbonate is not one of the named plastics in other subheadings of heading 39.21, and the cellular structure qualifies these panels for classification under 3921.19.00 as "of other plastics."
3921.19.00Cellular Polycarbonate Sheets
Multiwall cellular polycarbonate panels for roofing and glazing applications. The cellular structure and polycarbonate composition place them under tariff item 3921.19.00 as cellular sheets of 'other plastics'.
3921.19.00Cellular PP Sheets
Foamed polypropylene sheets for automotive and construction uses. As cellular sheets of polypropylene, they are classified under tariff item 3921.19.00 as 'of other plastics'.
3921.19.00Cellular PVC Foam Board
Rigid sheets made from cellular polyvinyl chloride (PVC) for signage, displays, and construction panels. As cellular sheets of PVC, they are classified under tariff item 3921.19.00 as 'of other plastics'.
3921.19.00Cellular PVC Foam Board Sheets
>- Rigid cellular polyvinyl chloride (PVC) foam boards used for signage, displays, and construction panels. PVC is not one of the named plastics in other subheadings of heading 39.21, and the cellular structure qualifies these boards for classification under 3921.19.00 as "of other plastics."
3921.19.00Cleanroom Microporous PE Curtain Film
>- Microporous polyethylene strip film for cleanroom strip curtains, maintaining air pressure differentials. This is a cellular (microporous) sheet of polyethylene, which is not one of the named plastics in other subheadings of heading 39.21, so it falls under 3921.19.00 as "of other plastics."
3921.19.00Cross-Linked Polyolefin Foam Sheets
>- Chemically cross-linked cellular polyolefin foam sheets used for insulation and gaskets. These sheets are made of polyolefin (e.g., polyethylene or polypropylene) that has been chemically modified through cross-linking, and per subheading note 1(a)(3), chemically modified polymers are classified in the "Other" subheading, which corresponds to 3921.19.00.
3921.19.00EVA Foam Exercise Mats
>- Closed-cell ethylene-vinyl acetate (EVA) copolymer foam mats for yoga and fitness. The ethylene monomer predominates by weight over vinyl acetate, and since no single comonomer unit contributes 95% or more, the copolymer is classified under the "Other" subheading per subheading note 1(a)(4), which corresponds to 3921.19.00.
3921.19.00EVA Foam Sheets
EVA foam sheets are flexible, closed-cell sheets made from ethylene-vinyl acetate copolymer, commonly used for protective packaging, crafting, and cushioning. They fall under tariff item 3921.19.00 because the vinyl acetate comonomer content is below the 95% threshold required for classification as a specific copolymer, making them 'other plastics' in cellular form.
3921.19.00Expanded Polypropylene (EPP) Foam Sheets
>- Expanded polypropylene (EPP) foam sheets, lightweight and impact-resistant, used for protective packaging inserts. Polypropylene is not one of the named plastics in other subheadings of heading 39.21, and the cellular structure qualifies these sheets for classification under 3921.19.00 as "of other plastics."
3921.19.00Foamed ABS Plastic Sheets
>- Foamed acrylonitrile-butadiene-styrene (ABS) copolymer sheets for automotive trim and prototyping. ABS is a copolymer where no single monomer unit contributes 95% or more, and per subheading note 1(a)(4), it is classified in the "Other" subheading, which corresponds to 3921.19.00.
3921.19.00Food Packaging Microporous PP Film
>- Microporous polypropylene film for fresh produce packaging, enabling modified atmosphere with ethylene control. This is a cellular (microporous) sheet of polypropylene, which is not one of the named plastics in other subheadings of heading 39.21, so it falls under 3921.19.00 as "of other plastics."
3921.19.00Housewrap Microporous Polypropylene Film
>- Microporous polypropylene breathable film used in construction housewrap for moisture vapor transmission. This is a cellular (microporous) sheet of polypropylene, which is not one of the named plastics in other subheadings of heading 39.21, so it falls under 3921.19.00 as "of other plastics."
3921.19.00HVAC Microporous Polyethylene Filter Media
Microporous polyethylene filter media in sheet form, used in HVAC particulate filters to capture fine dust while allowing airflow. The cellular (microporous) structure qualifies it as a cellular sheet of polyethylene, classifiable under tariff item 3921.19.00 as 'of other plastics'.
3921.19.00Medical Grade Microporous PE Filter Film
Sterilizable microporous polyethylene film for medical air filters and venting membranes, with pore sizes from 0.1 to 1 micron. Its cellular microporous structure places it under tariff item 3921.19.00 as a cellular sheet of 'other plastics' (polyethylene).
3921.19.00Microporous Polyethylene Breathable Film
Cellular microporous polyethylene breathable film that allows vapor transmission while blocking liquids, used in applications like apparel and hygiene products. The microporous structure makes it a cellular sheet of polyethylene, classified under tariff item 3921.19.00.
3921.19.00Microporous Polyethylene Roofing Underlayment Film
Breathable microporous polyethylene film used as synthetic roofing underlayment to prevent moisture buildup. The cellular microporous structure qualifies it as a cellular sheet of polyethylene under tariff item 3921.19.00.
3921.19.00Noryl Foam Sheets
Noryl foam sheets are cellular sheets made from modified polyphenylene oxide (PPO), a high-performance engineering plastic known for heat resistance and dimensional stability. They are classified under 3921.19.00 because the chemical modification of the polymer places them in the 'other plastics' category, as no specific subheading covers modified PPO.
3921.19.00PE Foam Rolls (Sheets)
PE foam rolls are cellular polyethylene sheets or rolls used extensively for protective packaging, cushioning, and insulation. They are classified under 3921.19.00 because polyethylene is not specifically named in the cellular subheadings, and the foam form places them under 'other plastics' in cellular configuration.
3921.19.00PET Foam Core Sheets
>- Cellular polyethylene terephthalate (PET) foam sheets used as sandwich panel cores in composites. PET is a polyester, and since there is no specific subheading for cellular polyester in heading 39.21, these sheets are classified under 3921.19.00 as "of other plastics."
3921.19.00Polyimide Cellular Foam Sheets
>- High-temperature resistant cellular polyimide foam sheets for aerospace thermal insulation. Polyimide is not one of the named plastics in other subheadings of heading 39.21, and the cellular structure qualifies these sheets for classification under 3921.19.00 as "of other plastics."
3921.19.00Polypropylene Microporous Separator Film
Microporous polypropylene separator film for batteries, featuring interconnected pores for electrolyte flow. As a cellular sheet of polypropylene, it is classified under tariff item 3921.19.00 as 'of other plastics'.
3921.19.00Protective Apparel Microporous PE Film
Microporous polyethylene film for chemical protective coveralls and aprons, with micropores smaller than 0.2 microns. The cellular microporous structure places it under tariff item 3921.19.00 as a cellular sheet of polyethylene.
3921.19.00PS Foam Boards
PS foam boards are cellular polystyrene sheets used for thermal insulation in construction and for model making. They are classified under 3921.19.00 because, despite being made of polystyrene, the cellular form and the specific subheading for polystyrene cellular products (3921.11.00) may not apply if the product is not exclusively polystyrene, or if it falls under 'other plastics' due to additives or modifications.
3921.19.00Roof Ventilation Microporous PP Ridge Film
Microporous polypropylene film for roof ridge vents, allowing attic moisture to escape. As a cellular sheet of polypropylene, it is classified under tariff item 3921.19.00 as 'of other plastics'.
3921.19.00Surgical Drape Microporous PP Film
Microporous polypropylene film for sterile surgical drapes and gowns, providing a bacterial barrier with breathability. The cellular microporous structure qualifies it as a cellular sheet of polypropylene under tariff item 3921.19.00.
3921.19.00Ventilation Patch Microporous Polypropylene Film
Small microporous polypropylene film patches for device housings, allowing pressure equalization and preventing condensation. As cellular sheets of polypropylene, they are classified under tariff item 3921.19.00, provided they are not further worked.
3921.19.00Wound Dressing Microporous Polyolefin Film
Microporous polyethylene/polypropylene blend film used as an outer layer for advanced wound dressings. The cellular microporous structure and the predominance of PE or PP monomers place it under tariff item 3921.19.00 as 'of other plastics'.