Definition - What does Steam Cleaning mean?
Steam cleaning is a cleaning process that involves using low-pressure steam to remove soluble substances from surfaces. This technique is typically used as a method of surface preparation before the application of paints or coatings. Steam cleaning is especially effective in removing contaminants such as dirt, oil, grease and other soluble substances.
Corrosionpedia explains Steam Cleaning
Steam cleaning may involve the use of steam, pressurized hot water or both. When steam or hot water is used to clean a surface, they are usually combined with a detergent or some form of alkaline cleaner. Steam cleaning removes oils, greases and other contaminants by thinning them with heat and diluting them in water.
Once diluted by the steam cleaning process, surface contaminants can be removed easily by further washing. When used with detergent, the cleaning power of steam cleaning can be increased significantly, including loose heavy contamination and even existing paints and coatings.