Used primarily as a high-temperature curing agent and crosslinking agent in polymer manufacturing. It is especially effective in the vulcanization of elastomers and the curing of unsaturated polyester resins. Commonly applied in the production of rubber products, such as tires and seals, where thermal stability is required. Also utilized in the modification of polyethylene to enhance melt strength and processability in blow molding and film applications. Its decomposition generates free radicals that initiate polymerization reactions, making it valuable in controlled radical polymerization processes. Suitable for use in systems requiring long shelf life and consistent performance at elevated temperatures.