LA-CO

LA-CO Industries, founded in Chicago in 1934, is a family-owned global manufacturing company specializing in the manufacturing of industrial hand-held markers, plumbing chemicals, and livestock identification products.
Since 1934, they have taken pride in the design and manufacturing of high quality, performance-based products for their customers’ unique applications.
Today the ever expanding US-based LA-CO Industries, with the logo 'Proven every day/Proven everywhere'  proudly celebrating 90 years producing high-quality products in the industrial, plumbing, temperature indication, and in farm industries. The LA-CO brand of high-quality, high-performance plumbing and HVAC chemicals is a trusted partner for professional contractors around the world. From homes to skyscrapers to the United States’ National Archives Building in Washington D.C., LA-CO-branded high-performance thread sealants, fluxes, heat protection products and repair sealants protect history’s important documents and maintain the world’s precious natural resources.
LA-CO-branded products are now sold around the world in over 30 countries.