Patent ID: 7544520

Claim:
A method for the elimination of local damage or an untreated place in a heat insulation layer or in a metallic protective layer on a component for use under high thermal stress, the component including a basic material, the method comprising: stripping away edge regions of individual layers of the heat insulation layer one after the other in steps using masks of different sizes, the size of the masks being successively larger or successively smaller from step to step so that the extent of the stripped-away surface of the individual layers of the heat insulation layer decreases or increases, respectively, in steps from an outermost layer of the heat insulation layer of the component to the surface of the basic material; applying layers necessary for eliminating the local damage or untreated place one after the other using masks of different sizes, the size of the masks being assigned for each individual layer; wherein stripping away comprises stripping away individual layers in the edge regions of the local damage so that ends of the individual layers are sloped uniformly, and the angle of the slope is essentially identical within a layer and over the extent of the edge regions; and wherein stripping away comprises stripping away the edge regions of the layers by sandblasting or a blasting method with ceramic blasting material.