Stick-O-Paint evolved into the Marcal® brand’s Paintstik®—a legendary name in marking products today. In 1945, LA-CO Industries expanded its growing Marcal® industrial marking product line into the farm and agricultural market with the launch of All-Weather® Paintstik®, a livestock marker. The All-Weather® product line was designed to meet farmers’ needs and quickly became a market leader. Throughout the 1940s, LA-CO Industries expanded into the plumbing market by launching PipeTite® thread compound under a new eponymous brand. LA-CO® brand flux was introduced in 1945 and quickly became a leader in the plumbing market. A few years later, the LA-CO® brand Slic-Tite Teflon® wire compound paste was launched. Industry professionals around the world soon came to rely on LA-CO® brand products to get the job done faster, better, and more safely. In 1934, Dr. Lester Aronberg founded Lake Chemical Company in Chicago, Illinois, USA, with the philosophy of providing high-performance products precisely engineered for specific industrial applications. Now in its fourth generation of ownership, the company carries forward Dr. Aronberg’s vision of making LA-CO Industries’s brands the preferred choice for marking, temperature indication, identification, and chemical products by delivering value to customers. That same year, Lake Chemical Co (now LA-CO Industries, Inc.) created Stick-O-Paint as its first product, and the marking solutions category was born. The innovation of capturing real paint in stick form drove the company’s growth and created the industrial marking category.