The National Plastic Products Company, Odenton’s largest employer from the 1940s to the 1960s, made stylish, durable, low-maintenance Nevamar laminated countertop and tabletop surfaces for America’s postwar housing boom.  On Sunday, November 5, the Odenton Heritage Society will mark the 75th anniversary of a large, semicircular mural in the company’s art deco headquarters building expressing the growing importance of synthetic materials.  A new display, “Nevamar and the Art of Laminating,” will describe the origins of the rotunda mural and the designs, processes, and product appeal that sustained NPPC’s success.  Through...