Polyether defoamers are a mixture of various polyether polyols belonging to different categories, obtained through a special processing procedure involving the reaction of different initiators with epoxides such as ethylene oxide, propylene oxide, and butylene oxide under the catalytic action of a catalyst. Due to their molecular structure, which simultaneously contains both hydrophilic and hydrophobic groups, they can disrupt the double-electron layer in foam, thereby exhibiting defoaming efficacy.

Depending on the characteristics of different industries, select different initiators and arrange the sequence of epoxides accordingly; if necessary, adjustments will be made based on their specific features.