TBPB is widely used as a polymerization initiator in the production of various polymers and plastics. It is particularly effective in initiating the polymerization of styrene, acrylates, and other vinyl monomers, making it essential in the manufacturing of adhesives, coatings, and synthetic rubbers. In the coatings industry, TBPB helps in creating durable and high-performance finishes for automotive and industrial applications. Additionally, it is utilized in the synthesis of specialty polymers that require controlled polymerization processes. Its role as a free-radical initiator also extends to the production of composite materials and resins, where it ensures consistent curing and optimal material properties.