Works pretty well
Used it on mineral crystal to mostly remove a deep scratch. This was deep enough to feel with my fingernail. I followed the instructions exactly, even using a timer for each 3 minute round. It made a huge improvement. At a certain angle I can still see a shadow of the scratch, so it didn't come out completely. But from a normal viewing it's nearly invisible. At least it doesn't catch my eye anymore. The original scratch was very distracting. I did probably 6 rounds of the "repair" sauce and 1 round of the "finish" juice. It takes work but that's what you get for trying to cut glass. I think I'll buy another kit and go at it again to see if I can complete the job 100%.
Rating: 5 stars