Following World War II, Rowland Rider learned of a new substance called "plastic" and knew of a man who intended to use it to create bathroom tiles. A tiny injection molding machine was purchased by Rowland and Romania Rider, along with their sons Max and Burt Rider, by taking out a mortgage on their houses. In Salt Lake City, a building at the intersection of West Temple and 21st South was home to the Rider Engineering and Plastic Company. Many of these new tiles were quickly installed in residences in the Rose Park, Glendale, and Sugar House neighborhoods by JB Tile. When plastic became widely available, more people were learning about it, which led to the founding of Rider Engineering and Plastic Company. Rider Engineering and Plastics grew as a result of their increased customer base.