Beautiful gold plating results in a much safer and environmentally-friendly formula. The days of cyanide-based plating are over. Not just safer but a higher quality surface finish. Cyanide-free means higher corrosion resistance over silver or even brass substrates –slower oxidization! Unlimited shelf life! Even after months of use, it produces an unchanging colour. This product works cold-perfect for small jobs or repair-work. No waiting for the plating to heat up.