| abstract |
For the purpose of forming a layer of a coating metal on a substrate, more specifically on a plastics surface, the metal layer firmly adhering to the plastics surface, the method being easy and low effort and hence performed at low cost, environmentally acceptable and acceptable with respect to health, i.e., with respect to toxicity of the chemical species used, a pre-treatment solution and method of forming a layer of a coating metal on such substrate are provided, the pre-treatment solution containing at least one organic solvent, at least one noble metal in ionic form being capable of reducing coating metal ions to elemental coating metal and at least one acid. |