N-Tetradecylstearamide is primarily used as a slip and anti-blocking agent in the production of plastic films and sheets. It helps to reduce friction between layers, making it easier to handle and process materials like polyethylene and polypropylene. This chemical is also employed as a lubricant in various industrial applications, improving the flow properties of polymers during extrusion and molding processes. Additionally, it acts as a release agent, preventing materials from sticking to molds or machinery. Its compatibility with a wide range of polymers makes it a versatile additive in the plastics industry.