Multi-layer spray painted surface characterisation method for automobile body parts

摘要

The method evaluates the visual appearance of a multi-layer painted surface applied to a substrate, using a number of measuring points distributed across the lacquered surface, Each is used for determining the visual penetration depth via an optical measuring system. The penetration depth measurements are used in combination with the thickness of each applied paint layer, used for providing a layer thickness gradient in 2 perpendicular directions, for characterising the painted surface.