• Cardboard

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    Updated 4/11/10 PAB

    Alternate names
    None reported

    Characteristics
    Comes in many forms: corrugated, flat, rolled, single wall, double wall, triple wall, and boxes. Most cardboard is corrugated layers with a paper lining on at least one side. Wall refers to the number of layers of corrugation. Test refers to the amount of pressure per square inch the material will withstand without puncturing. (The most common is 200 or 275 test.) It is a paper product and does have a high acid content. It is excellent for using as a protective barrier for objects. It can be cut or scored with a knife to create almost any shape; it absorbs moisture and can be coated to minimize absorption. It is very strong and fairly inexpensive and can be bought in ready-made cartons that are excellent for packing objects when filled with a cushioning material. Some cardboard is not corrugated such as mat board.

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