Choosing the Optimal Coating for Thermographic Inspection

Lately, the method of thermography is becoming an unavoidable method in non-destructive testing of different metal materials and constructions. The application of this method is found in testing the energy efficiency, deterioration of structural components, as well as testing the energy efficiency of housing units. Using the thermographic method it is possible to reduce the negative environmental impact and prevent a environmental incidents. Lately it finds its increasing application in testing of substructure changes in the material caused by deformation. A major impact on the measurement has a condition of samples surface, because of that the samples are prepared by applying a coating. In this paper testing were carried out on the effect of coating type on two important factors: stability in testing and factor of emissivity.