Used primarily as a flame retardant in unsaturated polyester resins, especially in fiberglass-reinforced plastics. Commonly found in electrical enclosures, circuit breakers, and industrial laminates due to its ability to improve fire resistance without compromising mechanical strength. Also used in some adhesives and coatings where thermal stability and flame suppression are required. Its low volatility and good compatibility with resin systems make it suitable for high-temperature processing.