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).
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If noncellular PET sheets
Non-foamed PET classified under noncellular polymers of esters heading.
If polyurethane cellular material
Specific subheading exists for cellular polyurethane sheets.
If fabricated into finished articles
Completed products move from Chapter 39 semi-finished plates to finished goods.
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 PET monomer units contribute 95%+ by weight per subheading note (a)(1)
• Measure dimensions; if ≤38.1cm width & ≤45.7cm length, may qualify for Free (B) rate
• Avoid classifying as table/bed/kitchen articles if marketed for end-use fabrication
Related Products under HTS 3921.19.00.90
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.
Cellular PP Sheets
Foamed polypropylene sheets for automotive and construction uses. HTS 3921.19.00.90 for cellular other plastics.
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.