Interactions between dry vibratable tundish lining material, tundish flux and molten steel were explored using a laboratory-based crucible experiment. A periclase-based dry vibratable tundish lining material containing 30 wt.% olivine was selected for investigation. The flux used was one that is commercially available and was provided by industry sponsors. The steel grade investigated was low-carbon, aluminum-killed and calcium-treated with titanium addition. Cathodoluminescence imaging, secondary electron microscopy and energy-dispersive spectroscopy were performed to characterize the interactions. The linings are compared to determine the impact of material selection on lining corrosion, spinel formation and steel cleanliness.