Dac51 is primarily used as a high-performance additive in polymer formulations to enhance thermal stability and mechanical strength. It is especially effective in engineering plastics exposed to elevated temperatures, where it helps maintain structural integrity and prolong service life. Its compatibility with aromatic polymers makes it suitable for use in automotive and electronic components that require resistance to heat and oxidation.

In addition to thermal protection, Dac51 acts as a processing aid during extrusion and molding by reducing melt viscosity, which improves flow and enables the production of complex, high-precision parts. It also contributes to UV resistance in outdoor applications, making it valuable in coatings and fiber-reinforced composites used in construction and transportation.

Due to its low volatility and high durability, Dac51 is preferred in long-life industrial applications where consistent performance under stress is critical.