Self-organizing, geometry-independent, and homogeneous: Test soiling for cleaning analyses rethought. In the IGF project SePoRa the Fraunhofer IVV together with the Leibniz Institute for Polymer Research Dresden develops self-organizing, fluorescent polymer layers and their application methods. With the approaches pursued in the project, for the first time cost-effective, reproducible, and meaningful investigations of the cleaning effect and efficiency of industrial component cleaning systems - with a minimum number of test executions - are in prospect.