Radiation cured coatings, including those cured by radiation sources such as electron beam (EB) and ultraviolet (UV), occupy an important position in the high-end coating field due to their unique curing mechanism and superior performance. However, the high temperature and high-energy radiation generated during the radiation curing process pose higher requirements for defoamers.

During the radiation curing process, the coating rapidly heats up and cross-linking reaction occurs, which easily leads to the rapid formation of foam and is difficult to control. At the same time, radiation sources also pose a severe challenge to the stability of defoamers.

Key points for selecting defoamers include high temperature resistance and the ability to maintain stable defoaming effects during radiation curing. Radiation resistance, less susceptible to decomposition or failure caused by radiation sources. High efficiency, can destroy the foam structure in a very short time, and ensure the coating quality.

By adjusting and optimizing the paint formula, reduce the composition that is easy to produce foam, and fundamentally reduce the risk of foam generation. Before radiation curing, the coating shall be pretreated by physical or chemical methods to remove air and foam. Based on the characteristics of the coating and curing conditions, accurately calculate and add an appropriate amount of defoamer to ensure optimal performance during the radiation curing process.

With the continuous development and improvement of radiation curing technology, the demand for defoamers will become more diversified and specialized. In the future, the defoaming strategy of radiation cured coatings will pay more attention to the development direction of environmental protection, efficiency, and intelligence, promoting the entire coating industry to move towards a greener and more sustainable direction. Meanwhile, the integration of interdisciplinary technologies will also provide more innovative solutions for defoaming radiation cured coatings.