It acts as an adhesion promoter, surface modifier, co-monomer for polymer synthesis and crosslinker. Provides optimum dispersion of the fillers and pigments, reduction in settling of the fillers and pigments. Offers reduced viscosity, improved flow properties of the resin and improved mechanical properties of the molded products. Possesses improved wet adhesion strength, chemical resistance and mar resistance. It can improve strength as glass fibre size composite in reinforced polyester composites. The equivalent grade of the product of different brands is LT-570, MEMO, Silsquest A-174, Xiameter OFS-6030, KBM-503.