Definitions for "POLYSTYRENE"
(CH(C6H5)CH2) A polymer used as insulation.
Polystyrene is a very versatile plastic that can be rigid or foamed. General purpose polystyrene is clear, hard and brittle. It has a relatively low melting point. Typical applications include protective packaging, containers, lids, cups, bottles, trays and tumblers. ( Plastic Packaging Opportunities and Challenges, APC, February 1992).
A term used to describe frame moulding that is made from plastic. It is commonly used for budget jobs like guestroom art due to its low price point. However, it has bowing problems in larger sizes.
A man-made material, similar in appearance to marble, which is sometimes used to form countertops in bathrooms.
Polystyrene is a product of the UK, Europe and USA. The material is stiff and inclined to have a metallic rustle or ring to it. The main disadvantage of the material is that it will disintegrate quickly if it comes into contact with normal hydro-carbon solvents i.e. petroleum products, kerosene and minerals etc. Polystyrene is not recommended for use around heat as it ignites readily.
The second most widely used resin within the industry, polystyrene exhibits good clarity, low moisture absorption, smooth surface qualities and ease of processing. Principal applications include overcaps, lid and screw caps for non-oxygen sensitive materials. Demand for polystyrene is expected to slowly decline through the decade as packagers continue to upgrade for improvements in impact and heat properties.