 In 1975, Dayton Sure-Grip purchased C&M Chemical Co. out of Sycamore, Illinois, beginning their production of chemicals.After the purchase of Superior Concrete Accessories in 1982, the company changed their name to Dayton Superior Corporation.A series of acquisitions followed, leading to international expansion (purchased Superior Concrete Accessories of Toronto and Cogan Wire Company of Montreal), and the purchase of Symons Corporation.