Coating system and method for maintenance thereof

A coating system for an article, the coating system comprising:

• a bond layer disposed on the article and comprising CoNiCrAlY;
• a thermal barrier layer at least partially disposed on the bond layer, the thermal barrier layer comprising yttria stabilised zirconia;
• a mesh layer connecting the thermal barrier layer to the bond layer, the mesh layer comprising CoNiCrAlY, wherein the mesh layer comprises a plurality of cells connected to each other, wherein the mesh layer extends from the bond layer and is at least partially embedded in the thermal barrier layer, wherein each cell defines a cell opening therethrough, and wherein the cell opening of each of the plurality of cells at least partially receives the thermal barrier layer therein;
• and
• an abradable layer disposed on the thermal barrier layer and comprising magnesium spinel;
• wherein the abradable layer and the thermal barrier layer are at least partially removable from the mesh layer and the bond layer without damaging the mesh layer and the bond layer.