ETPU Foam Precursor Sheets
Noncellular expanded thermoplastic polyurethane (ETPU) precursor sheets for subsequent steam-chest molding. HTS 3920.99.5000 for these unreinforced TPU sheets before expansion process. Used in athletic footwear manufacturing.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If after steam chest expansion process
Expanded cellular plastic sheets shift to 3921 cellular plastics heading
If molded into finished shoe midsoles
Foam midsoles classified as completed footwear uppers/parts
If meets synthetic rubber cellular criteria
Highly elastic expanded TPU may qualify as cellular rubber Chapter 40
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Import Tips & Compliance
• Clearly mark as 'precursor sheets - not expanded'; provide density specs confirming noncellular status pre-molding
• Include steam expansion processing parameters
Related Products under HTS 3920.99.50.00
Polycarbonate Printer Transparency Film
Thin, noncellular polycarbonate sheets designed for inkjet and laser printers to create overhead transparencies. Classified under HTS 3920.99.5000 as other non-reinforced plastic sheets of polycarbonate, not combined with other materials. Meets polymer classification rules where polycarbonate monomer units predominate by weight.
PETG Signage Blanks
Clear, noncellular PETG (polyethylene terephthalate glycol) sheets used as blanks for laser-cut signage and displays. Falls under 3920.99.5000 as other unreinforced plastic sheets where PETG copolymer meets the 95% monomer content rule for classification. Not laminated or supported with other materials.
Acetal Engineering Sheets
Noncellular acetal (polyoxymethylene) sheets for machining into precision engineering components. Classified in 3920.99.5000 as other plastic sheets, non-reinforced, where acetal polymer meets the 'poly' prefix 95% purity requirement. Used in industrial fabrication, not as finished parts.
Polysulfone Medical Grade Sheets
Transparent, noncellular polysulfone sheets certified for medical device fabrication and sterilization processes. HTS 3920.99.5000 applies to these high-performance unreinforced plastic sheets meeting polymer purity standards. Essential for biocompatible applications.
Clear PVC Document Sleeves Sheets
Noncellular polyvinyl chloride sheets cut to size for document protection sleeves and binders. Falls under 3920.99.5000 as other unreinforced PVC sheets not meeting specific subheadings. Non-laminated and suitable for office organization.
Nylon 6/6 Fabrication Sheets
Noncellular polyamide-6,6 sheets for machining into wear-resistant industrial parts. Classified 3920.99.5000 where nylon 6,6 monomers constitute ≥95% by weight per subheading note (a)(1). Unreinforced stock material only.