Description

The brick colour is distinctly anthracite to coal black as a result of a homogenous mixture of the precise proportions of manganese oxide with grey-red baking clay. A lightgrey to white top layer/coating is applied on this handmoulded brick on the basis of a cement mixture. The colour scheme is nuanced. The subtle base colour can be seen through the cement coating. The colour may change in humid conditions and after drying out the cement coating will get its true colour.

Pressure

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 facing bricks of the KOLORO series have a cement coating. The remarks below may be useful for the correct and successful use in the brickwork.