Gypsum and composite systems

Facade plaster and thermal insulation composite systems (ETICS) are difficult surfaces to remove graffiti, often leaving little or no residue. The structure or granulation of the surface presents large areas where solvent-containing graffiti paints can attack and, in the case of ETICS, can even lead to solvents getting into the bonded rigid foam panels, thereby destroying the insulation. properties of the substrate. Therefore, only slow-acting, solvent-free removers or a light spray method can be used to remove graffiti. If the exposed area is relatively large, the most effective solution for these unprotected surfaces is to roughly remove the graffiti to break up the surface paint particles and then repair the treated area with paint.