Cealin Chemische Fabrik GmbH

Trust in competence in water treatment - trust in Cealin!

For over 30 years the name Cealin has stood for the research, development and production of innovative water conditioning products. Cealin acts as a worldwide supplier for well-known industry combines, water works, hotels, and clinics as well as swimming pools and water conditioning companies.

Drinking water


Water disinfection is one of the core domains of Cealin's business. Our main focus is the elimination of biofilm, germs, bacteriae, and legionella in all water systems. Through the development of ready-to-use, patented chlorine dioxide solutions and with agencies in many states of the EU today, we are one of the leading producers of chemicals for water condition in Europe.