Allyl maleate is primarily used as a reactive diluent and crosslinking agent in polymer formulations. It improves the curing efficiency of unsaturated polyester resins and enhances the thermal and mechanical properties of the final product. Due to its dual functionality, it participates in free radical polymerization, making it valuable in coatings, adhesives, and composite materials. It is also employed in the synthesis of specialty monomers and as a modifier in resin systems to increase flexibility and chemical resistance. Its ability to react with amines and thiols extends its use in functionalizing polymers for advanced material applications.