Natural stone is such a material that demands special treatment. Correct treatment is of vital importance for stone good appearance. Lately surface erosion because of the aggression of environment has increased enormously, especially in industrial and densely populated areas. Stone products are always exposed to adverse factors. Outdoors these are: abrupt temperature difference, ultraviolet rays, atmospheric precipitation, mechanical failures, etc. Indoor adverse factors include household dirtying and surface abrasion.

Natural stone is such a material that demands special treatment. Correct treatment is of vital importance for stone good appearance. Lately surface erosion because of the aggression of environment has increased enormously, especially in industrial and densely populated areas. Stone products are always exposed to adverse factors. Outdoors these are: abrupt temperature difference, ultraviolet rays, atmospheric precipitation, mechanical failures, etc. Indoor adverse factors include household dirtying and surface abrasion.