ABS is a common thermoplastic used to make light, rigid, molded products such as golf club heads (used for its good shock absorbance), automotive body parts, protective head gear, and packaging.  It is a copolymer made by polymerizing styrene and acrylonitrile in the presence of polybutadiene binding together making ABS stronger than pure polystyrene.  The polystyrene gives the plastic a shiny, impervious surface.  The butadiene, a rubbery substance, provides resilience even at low temperatures.

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