Testing graffiti removal methods on inorganic surfaces: plaster, stone, concrete

Tests were executed on raw and smooth surfaces of paster, stones and concrete

Each surface were diagnosed / documented via microscope before and after graffiti application

Acrylic, acrylic on water base and alkyd aerosol paint and 2 types of marker: alcohol and water base acrylic

Acryllic paint on the raw plaster surface (microscope photo)