In this study, effect of MgO/CaO molar ratio on the floor tiles properties was investigated. The viscosity of the bodies was successfully calculated by fleximeter analyses data. High MgO/CaO ratio causes enhancement of the densification temperatures and dissolution of the crystals in the floor tile body. The results showed a, during firing, high MgO/CaO ratio up to 6,505 value, formed, low viscosity liquid phase and allowed low sintering temperature approximately 20 ^oC when compared to the standard floor tile body. For YK_3 composition will be evaluated due to has allowable deformation amount for the production. This floor tile composition will be successfully produced in production line.

Keywords: Floor tile, Deformation, Viscosity, Sintering