The aim of this study is to prepare small particles of calcium manganite (CaMnO3) by coprecipitation. For this purpose, the influence of temperature, concentration, aging time of the solution and the order of mixing on the size of coprecipitated particles was studied. The precipitate was calcined at 900 °C for 2 hours, resulting in crystallization of calcium manganite. Coprecipitated and calcined samples were analyzed by X-ray diffraction analysis, infrared spectroscopic analysis and scanning electron microscopy. The second part of this study covers the preparation of thin and homogeneous coatings of synthesized powder. Samples were homogenised with 3 % solution of poly (vinylidene fluoride) in 1-methyl-2-pyrrolidinone in a mortar. Coatings were applied on a glass substrate using a doctor blade with 20 μm and 40 μm deposition thickness. The quality and coverage of the surface of the coatings was studied and characterized by scanning electron microscopy. Experimental data point to the fact that the investigated factors have minimal effect on the particle size, and a more significant effect on the degree of agglomeration and on the form of coprecipitated particles. Coatings of better quality and homogeneity were deposited from mixtures of a higher solids content using the greater deposition thickness.