Reply To: Adding two coating surfaces in Ansys Workbench

[SSURA]

Surface coating is usually the automated case where shell elements get scoped geometry of solid bodies with user defined properties. The shell elements use the same nodes as the solid body , like shared topology. The second surface coating does add to the number of elements and play a role in the analysis. The same can be checked in 'Material and Element Type Information' in the worksheet of solution information.
A manual method to replicate the same in simple cases is to create surfaces on the geometries with shared topology and meshing the surfaces with shell elements. Now since there are two noticeable two surfaces, you may add the desired material to simulate the same.
You may refer to the following links-
Surface Coating (ansys.com)
Surface Bodies (ansys.com)
Hope that helps.
Thanks Sahil