Today environmentally friendly aqueous cleaning has taken on the most important role for the intermediate and final cleaning of parts. They tend to be preferred if a large quantity has to be cleaned and/or fine and finest cleaning has to be carried out.

A common cleaning media for wet-chemical processes are solvents.

Depending on the targetted cleanliness, the material compatibility and the nature of the contamination that has to be cleaned off either (non-halogenated) hydrocarbons, chlorinated solvents or polar solvents may be selected.