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In this work, a possibility to develop a new zircon-based refractory coating  for casting applications was investigated. Optimization of the coating  composition with controlled rheological properties was attained by  application of different coating components, particularly by application of a  new suspension agent and by alteration of coating production procedure.  Zircon powder with particle size of 25x10-6 m was used as filler. The zircon  sample was investigated by means of the following methods: X-ray diffraction  analysis, diffraction thermal analysis and polarized microscope. The shape  and grain size were analyzed by means of the PC program package OZARIA 2.5.  It was shown that application of this type of water-alcohol-based coating had  a positive influence on surface quality, structural and mechanical properties  of the castings of cast iron obtained by pouring into sand molds by means of  the expandable patterns method (Lost Foam casting process)

Scientific paper zircon-based coating for the applications in Lost Foam casting process