Coloured Cement tiles stain removal treatment These coloured cement tile in a house got stained by a cleaning chemical that leaked inside a shopping bag left on the floor. The treatment to the cement solved the problem. 1 The white etch stain can be seen clearly on the dark section of the floor. 2 Drip stains show on the tiles as the bag was removed from the floor 3 4 After the cleaning and treatment there is no sign of the etch stain at all 5 6 The colour is enhanced and all the stains are completely gone see more repairs