5887 has excellent defoaming effect, good foam suppression effect, high safety and cost-effective. It has excellent compatibility and can be added at any stage of the production process. It is difficult to select suitable defoamers in water-based two-component polyurethane, water-based baking paint, water-soluble high-temperature baking paint systems etc, the reason is that: the use of strong defoamer is easy to produce shrinkage holes problem while the use of weak defoamer such as polyether defoamer is insufficient in defoaming, in addition, unsuitable defoamer will be easy to cause heat rashs, dark bubbles and other problems, this product is specially developed for use in these systems and has excellent effects.