This series of resins is water-soluble rosin ester solution. With stable rosin ester as the basic raw material and water as the solvent, they are environmentally friendly products without organic solvents or VOCs emissions. The products have good compatibility with many kinds of polymer emulsion such as EVA emulsion, SBR,and NBR. They can significantly improve the wetting effect on non-polar substrates, and enhance the adhesion strength to non-polar materials.