The fibers of the cover are also very coarse and finer looking in vain ...
The cover is okay to replace the old one, which has to be sorted out slowly now, but unfortunately not what I had hoped for. My thumbprint large (or small) tile in the kitchen, the center now some (minimal) are deepened through age, I probably wienern with NEM sponge so that they are clean - which has the reference namely, as well as the old, not managed. : /