I haven't seen it yet,The rouge itself doesn't stick to the cases,as a abrasive it is very, very,very, fine, rouge is used by jeweler's to polish soft materials like gold, silver, so not alot of material can be removed,if it did, they would'nt use it, and most steel dies are made from very,very,hard steel, if there is a wear factor here, it is a very small one, So,no, I don,t think it will wear your dies,