What should I do if the adhesive strength of the sticker is not enough? Try rosin thickening resin 958. The thickening effect is significant, the compatibility is good, and it can significantly improve the surface adhesion strength and initial viscosity. Using water as the solvent, free of VOC, environmentally friendly and green, it is an environmentally friendly product. It has good compatibility with the commonly used lotion such as EVA, styrene acrylic, acetate acrylic, tert acetate, etc., and can be used under neutral and weak alkaline conditions in a wide range of PH values. Do you know any other methods? Please leave a message in the comment section and let me know.