KY-SC177 is a composite surfactant researched for pesticide suspension concentrate (SC), with comb polycarboxylate as the main content and modified polyether as the supplement. It is applicable for 150 kinds of pesticide technical materials (TC) and more than 2,000 pesticide suspension concentrate formulas can be developed by derived from this adjuvant. The product also has excellent universality, and adaptable for various complicated formulas, such as growing particle size, high content percentage, high solubility in water or low melting point TC formulas etc.