Traditional cement render used on external walls normally is applied in two or three coats. The base coat (Scratch coat) gives a good key for the next layer, to the last coat. Depending on the condition of the wall, we recommend using a mesh cloth to avoid cracking. Walls can be painted or finished by acrylic or silicone thin coat render. Some manufactures offer one coat cement render, ready to mix with clear water. It’s very effective with a silicone facades texture.