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Unwanted color after using ThickSurface


I created the yellow part in GSD and then brought it in "part Design" and used Thicksurface. The part color changed into yellow, as you see. Afterward, I used mirror, but the mirrored part had a normal color. How can I change the yellow color into gray, as its default color is. The yellow color appears even after rendering.

Last edited:


Super Moderator
CATIA's default colors: surfaces are yellow, solids are gray

The image shows the mirrored surfaces and the solid on top of each other. Hide the Geometric Set (containing the surfaces, sketches and plane), so only the PartBody (containing the solid) is shown.


Thank you

I thought, after using ThickSurface the surfaces change into solid. How can I turn the surface (yellow part) into solid?