Marl fence

Laser cleaning of stone – the surface of a stone wall made of marl, dating back to the 1920s, was in very good condition, but due to atmospheric pollution it was dark, in places black.
Laser cleaning of marl is relatively fast, impurities are removed without any degradation of the surface. When cleaning stone with a laser, there is no contamination of the surroundings, unlike cleaning with pressurized water, steam or blasting. www.lsrservices.cz