Solidify modifier causing strange artefacting? I have made the following part of a model which I want to add some thickness to. 



When I add a solidify modifier to the model I get these strange artifacts:



I tried to merge vertices by distance to check for any duplicate geometry to rule out Z fighting, but there isn't any:



Does anyone know what could be causing this?
Solidify causing this.

I expect that 0.1 thickness is too small for this object, so increase thickness value. 

You may expect, that 0.1 thickness must be a big value, but this value multiplies with object scale, so you may apply scale to fix that (Ctrl+A -> Scale)