Cellular PP Sheets
Foamed polypropylene sheets for automotive and construction uses. HTS 3921.19.00.90 for cellular other plastics.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If rigid cellular polypropylene
Physical rigidity determines rigid vs other cellular subheading.
Not sure which classification is right?
The Tariff Assistant works through the GRI rules on your specific product to reach the right HTS code — and can price the duty on it in the same conversation.
Import Tips & Compliance
• Confirm not chemically modified (would go to specific unmodified PP)
• Industrial vs retail end-use doesn't affect sheet classification
• Provide thickness/density specs to avoid rigid misclassification
Related Products under HTS 3921.19.00.90
PET Foam Core Sheets
Lightweight cellular polyethylene terephthalate (PET) foam sheets for sandwich panel cores in aerospace and marine applications. Falls under 3921.19.00.90 as cellular sheets of other plastics (PET predominates per polymer notes).
Cellular Acrylic Sheets
Foamed acrylic polymer sheets for signage and displays, cellular structure of other plastics. 3921.19.00.90 as acrylic predominates but no specific acrylic cellular subheading.
PS Foam Boards
Cellular polystyrene foam boards for insulation and model making. Under 3921.19.00.90 as expanded PS sheets of other plastics.
Cellular ABS Sheets
Foamed acrylonitrile-butadiene-styrene (ABS) copolymer sheets for thermoforming. 3921.19.00.90 since ABS blend doesn't meet single monomer 95% rule.
Noryl Foam Sheets
Cellular modified polyphenylene oxide (Noryl) sheets for engineering applications. 3921.19.00.90 as chemically modified other plastics.
Cellular PVC Foam Board
Rigid sheets made from cellular polyvinyl chloride (PVC) used for signage, displays, and construction panels. Classified under HTS 3921.19.00.90 as cellular plastic sheets of other plastics (PVC), not rigid or flexible, in rectangular form.