The 1930’s brought about the industrialization of Evansville and a new division at George Koch Sons, the Industrial Division. George Koch Sons experienced continued success of the Metalcraft Division, but with the new industrialization of the city, noticed the need for a new product - paint finishing systems. George Koch Sons knew there was this need as they had trouble finding quality finishing paints to coat their metal. George Koch Sons realized that new companies needed quick-drying and durable finishing paint to use on their products.

The Industrial Division of Koch first developed paint curing and drying ovens, and then a series of standard ovens. They designed and manufactured pretreatment washers, paint ovens, spray booths, and conveyor systems. Before Koch knew it, all types of manufacturing businesses around the midwest began to look to Koch for their painting systems, drying ovens, and other industrial sheet metal needs.