Coatings for marine vessels to reduce cavitation phenomena

Compositions for coating substrates used in humid environments, including boats, steamships, other marine vessels, and components thereof, submerged in water, are disclosed. The compositions include solvent-borne monomers, diluents, adhesion promoters, rheology modifiers, and ceramic performance additives, such as hollow spheres and non-hollow spheres. Once the composition is coated on a substrate, the coating can reduce cavitation and underwater radiation noise to the greatest extent during operation of a marine ship, so that a protective effect is achieved. The coatings may also exhibit better substrate adhesion, coating adhesion, recoating adhesion, bending strength of at least 10 mm, lower radiation noise, and/or higher hardness by scratch resistance (relative to the control). 本发明公开了用于涂覆潮湿环境中使用的基底的组合物，该基底包括浸没在水中的小船、轮船、其他海洋船舶及其部件。该组合物包括溶剂型单体、稀释剂、粘合促进剂、流变学改性剂和陶瓷性能添加剂，例如中空球和非中空球。一旦组合物涂覆到基底上，涂层可在海洋船舶运行时最大限度地减少气穴和水下辐射噪声，从而起到保护作用。涂层还可以表现出更好地基底附着力、涂层附着力、再涂层附着力、至少10mm的弯曲强度、更低的辐射噪声和/或通过抗刮擦性显示出的更高的硬度(相对于对照)。