High frequency plate finishing agent CL-GP8010 is a kind of polymer solvent, which can replace plasma, naphthalene sodium salt and tetrahydrofuran. After the treatment, the pore wall of the hf plate has a strong palladium adsorption capacity. No special production environment, can be open continuous supplementary use, the effect is obvious, after the treatment of a copper sink full hole rate is very high. Reduce comprehensive cost of copper sinking process and improve production efficiency.