... /Anti-Tarnish Acrylic Resin JC-2050 Water-based Sealing Lacquer/Anti-Tarnish Acrylic Resin JC-2050 lacquer is used in the post-treatment for deposits with ... 48, DPE,IMZE,JC-9, IMC,H1,HETM...Copper Plating ChemicalsAlkaline Copper plating (Brightener& leveling agent)CB-1, CB-4, CB-5 ...