Bought this to remove scratches from my Sportline watch.  The watch has a large bulbous plastic face that scratches easily and Polywatch worked perfectly to remove the scratches.  I used paper lens cleaning tissue with a small dap of Polywatch directly on the plastic face rubbing firmly for about 3 minutes.  A second application was required to remove all the scratches but the face was in pretty bad shape but now looks like new. Highly recommended.