The facade bricks (non-perforated) have five sand covered sides and one side with possible oblong groove. The structure looks rugged with fine and irregular grooves in the sandy surface. The baking process takes place in a gas-heated tunnel oven under slightly reduced atmosphere.
The brick has a yellow base. The various types of sand are responsible for colours, ranging from yellow to soft pink with beige and grey shadings.
The colours shown are a near reflection of reality.