The surface finish of a stone material characterizes its expressive value: the planarity varies, the colour and the texture are enhanced or attenuated also according to the processing carried out. The same physical properties can change as a result of the processing and chemical treatments used, through these it is possible to respond to specific requirements such as obtaining a certain degree of slipperiness, improving resistance to atmospheric agents, facilitating surface cleaning, enhancing the colours, etc.
Intended use, expected aesthetic result and actual workability of the material, are the three factors that guide the choice towards this or that surface finish. It is necessary to keep in mind that marbles, granites, travertine and natural stones are different from each other and therefore some finishes can be made on certain materials and not on others, with an aesthetic result that will be different from stone to stone even with respect to the same processing.
The main processing and treatments that can be performed on the surface of stone materials are described below: