Make sure the Wall Surface is free from dirt, paint or grease. If necessary, roughen the walls and apply mortar cement to the entire back side of the stone. Avoid cement stains on stone surfaces by using tools, not bare hands.

Be sure to make an x ​​or stripe before placing the flat component. Start in one direction and work in the other. Press each end of the stone into the cement mortar in a shearing or unidirectional motion. Make sure each stone is placed as close together as possible, thus creating a point of uniform spacing between one stone and another.

Fill in the stone joint gaps with grout, using a grout bag. Better results can be archived by choosing a grout color that matches the color of the stone. It is recommended to use a trowel to file a smooth and even color grout in every corner of the stone.

Before the grout hardens, use a stiff brush or a wooden rack tool to remove any remaining grout or mortar that is on the stone. You can also use a wet brush to clean any small cement stains left behind.