Licheng LC8667 is a single component, environmentally friendly multi-functional cleaning agent with stable performance, not easy to decompose, self extinguishing upon ignition, rapid solvent evaporation, no residue, more thorough cleaning, less irritation to human respiratory organs and skin, safe and convenient storage and transportation, and strong esterification removal effect on oil and grease. Used for cleaning and repairing the ash layer, water vapor, and oil stains on the surface of the substrate, it can effectively increase the bonding strength between the adhesive and the substrate.