We have painted the concrete floor in the kitchen of a restaurant we constructed, but the paint has worn off in the traffic areas. Please advise what we should do to this floor to give it a smooth, non-slippery, permanent wearing surface.
It would be difficult to know precisely why the paint wore off the floor in traffic areas without thoroughly examining the floor and knowing something about how it was constructed. As a rule the loss of adhesion in a painted surface is due to water pressure behind the paint film or the presence of efflorescence (also caused by moisture). The source of the water must be removed or the condition will continue to occur. If it is not possible to remove the water an alkali-resistant paint or some form of water barrier must be used. A poorly prepared surface can also cause loss of adhesion.