Prommar Plastics is a family owned business with over 50 years of combined experience in high quality injection molding. We are located in Harvard, Illinois, home of Milk Days, with easy access to Chicagoland, all of Northern Illinois and Sourthern Wisconsin. Because we are family owned all of our team takes great pride to make the highest quality parts delivered on time at the best prices possible. We can be your one stop for molding, printing, assembly and sonic welding.