IBOA, when used in radiation-curing coatings such as printing inks, acts as an active diluent that effectively reduces viscosity, improves application performance, and enhances leveling properties. In epoxy-acrylic oligomers, IBOA helps reduce internal stress and volume shrinkage, improving adhesion, impact resistance, mar resistance, and weather resistance without sacrificing hardness and flexibility. In protective coatings for discs, IBOA ensures a close attachment to the disc surface, significantly enhancing mar resistance, coating performance, and gloss.