Used primarily as a multifunctional acrylate monomer in UV-curable formulations. Offers high reactivity and contributes to rapid curing under UV light exposure. Commonly applied in coatings, inks, and adhesives where fast curing, hardness, and chemical resistance are required. Its spiro structure enhances thermal stability and reduces shrinkage during polymerization, making it suitable for precision applications in electronics and optical materials. Also utilized in 3D printing resins to improve resolution and mechanical strength of printed parts.