What is PET Clamshell?
June 25, 2025
A PET clamshell is a type of packaging made from Polyethylene Terephthalate (PET) plastic, designed in a hinged "clamshell" shape that opens and closes like a clam. It is commonly used for retail packaging due to its durability, transparency, and ability to securely display and protect products.
Key Features of PET Clamshell Packaging:
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Material – Made from PET plastic, which is lightweight, shatter-resistant, and recyclable (#1 plastic resin code).
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Design – Two hinged halves that snap shut, often with a locking mechanism or heat-sealed edges.
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Transparency – Clear PET allows products to be visible, reducing the need for additional marketing materials.
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Security – Tamper-resistant design helps prevent theft (often used for electronics, cosmetics, and small consumer goods).
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Customizability – Can be molded into various shapes and sizes, with options for branding, printing, or adding inserts.
Common Uses:
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Electronics (USB drives, headphones, batteries)
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Toys and small gadgets
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Cosmetics and personal care items
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Food (berries, salads, bakery items in vented clamshells)
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Pharmaceuticals and medical devices
Advantages:
✔ Lightweight yet durable
✔ Excellent product visibility
✔ Tamper-resistant and secure
✔ Recyclable (check local recycling guidelines)
Disadvantages:
✖ Can be difficult to open without tools (leading to "wrap rage")
✖ Some environmental concerns if not recycled properly
PET clamshells are popular in retail due to their protective and display-friendly properties, though some brands are shifting to more sustainable alternatives like rPET (recycled PET) or compostable materials.