The wall finish is a 2 to 3 step process. Much like cementatious applications in the U.S. (as opposed to synthetic) it is a three step process in most cases. Above we see the chapisco (scratch coat) method where the looser mixture is flung against the wall to create a rough surface for bonding. This is sometimes done by flinging the mixture through a screen 2cm x 2cm grid. The second coat emboco is much like a brown coat and the third is the finish, reboco.