Napasco is a Louisiana based company that takes pride in our complete line of products. All of our products have proven themselves over the years through performance and satisfied customers. The dynamics of growth in a competitive business require constant research and development of new and improved products. Part of the reason for our growth has been our emphasis on offering customers innovative products to meet their needs. Rust Converter, Rust Inhibitors for Closed Systems, Wastewater Treatment Chemicals, Other Specialized Cleaning Products.