Revit create materials every time when I update dwg-link

[abajenov]

Ladies and gentlemen, I need your help. The title says for itself. Those materails represent autocad layers and I don't need them in revit. Our costumer requires unused materials to be deleted. Thank you in advance!

[barthbradley · Accepted solution]

More info needed.

Are you talking about the Layer Name or Material?  Or both?

Also, want do you do to "update" the Linked DWG - and, are you saying that every time you do "update", Revit creates new/additional instance properties for the Link?  

[abajenov]

Thank you! Solved! I simply created new material and assigned it to all imported objects.