Polyether ester defoamer is based on polyether defoamer, through the reaction with fatty acids or other organic acids prepared, because its molecular structure retains part of the functional group of polyether defoamer, added ester group, to avoid the effect of hydrogen bond in polyether defoamer, so that it in some specific industries or occasions better dispersion, more durable foam suppression. In addition to having the strong anti-foaming properties of polyether defoamer, it is also easier to disperse.

According to the characteristics of different industries, different organic acids will be selected for esterification, and if necessary, it will be mixed with other polyethers, or partially hydrolyzed to meet the requirements of the industry or product for bubble suppression performance.