Wet Floor Sign Description A wet floor sign for use in all areas to warn of slippery floors, hazards in the kitchen or public areas. A safety floor sign to warn of slippery floors and hazards in the workplace. ;; Wet Floor Sign Description A wet floor sign for use in all areas to warn of slippery floors, hazards in the kitchen or public areas. A safety floor sign to warn of slippery floors and hazards in the workplace.