William Bradbury pioneered the color compounding and color matching techniques that are widely used in the plastics industry today. He is credited with the development of hermetically sealed, poly-lined unit bags for dry colorant packaging, dustless colorants, and universal color masterbatches. His patents include Freez-dri colorant, PoMaS polyester marine anti-foulant, the Micronizer color meter, and other blending devices.

His early apprenticeship began in 1942 with Union Carbide and later with Gering Plastics. In 1950 he founded PMS Consolidated (formerly Plastics Molders Supply Co.) The nationwide network of plastic colorant laboratory and production facilities was an innovation conceived by him to optimize regional servicing of the rapidly expanding plastics industry.

Bradbury was a leader in the Society of Plastics Engineers (SPE) from 1957 until his death. He established the William B. Bradbury Fellowship, which provides an annual plastics research grant to deserving graduate students designated for recognition and financial assistance by the Plastics Institute of America.

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