If your KIX pins become dirty, remove them from the footwear and run under a tap to remove bulk, then dab them dry with a paper towel or cloth. IT IS IMPORTANT NOT TO WIPE THE FACE AS THIS CAN CAUSE SCRATCHES.
If you notice fine scratches, they can be polished or buffed out using Stainless Steel polish or Brasso. If the scratches are too deep or there are too many, the face can lose some of its lustre.