I used Displex to remove a tiny but deep scratch on the screen of my new Samsung Blackjack. As I polished, the scratch began to grow flatter and wider. I just assumed that was normal. So, being the optimist I am, I continued to work at it. After several applications, I ended up with a 1/4-inch diameter "dimple" on the screen that is much more noticeable than the original scratch!This product might work well on small, fine abrasions, but use with caution on deep scratches.