In radiation-curable coatings and printing inks, surface quality, defect control, and scratch resistance are critical factors that determine final performance. Acrylate-modified silicone oils have been developed to address these challenges in modern UV and EB curing formulations.

Unlike conventional non-reactive silicone additives, acrylate-modified silicone oils contain polymerizable acrylate groups on the side chains. During the curing process, these functional groups participate in crosslinking reactions, allowing the additive to become an integral part of the cured film. This significantly reduces migration, surface blooming, and re-tack issues, while maintaining long-term performance stability.

In UV printing inks, overprint varnishes, and pigmented coatings, these silicone additives effectively improve flow and leveling behavior. The result is a smoother, more uniform surface with reduced defects such as pinholes and surface irregularities. Their excellent deaeration and defoaming capability also helps eliminate microbubbles, especially in high-speed printing or high-solid formulations.

Another key advantage is the enhancement of surface durability. Acrylate-modified silicone oils can improve scratch resistance and resistance to marker or pen marks, making them particularly suitable for packaging inks, labels, and protective UV coatings. A moderate increase in surface slip can also contribute to better handling and processing performance during printing and converting operations.

From a formulation perspective, these additives offer flexible incorporation options. They can be added directly or as pre-diluted solutions, either during dispersion or at later stages, provided sufficient shear is applied to ensure uniform distribution.

Overall, acrylate-modified silicone oils provide an effective balance between surface modification, curing compatibility, and long-term durability, making them a valuable component in high-performance radiation-curable coating and ink systems.