6.Why water is unnecessary in grinding but necessary in polishing?

1. In the 2018 glass scratch repair kit, grinding sheets are of dry grinding type, for the sake of quickness and high efficiency. Water is not needed in grinding.
2.Unlike the 2018 glass scratch repair kit using the polishing pad, the previous kits use felt wheels plus polishing paste for polishing. After polishing, many white marks of polishing paste remain in the repair area, polluting surrounding walls or furniture, if the repaired glass is in a well-decorated room. Besides, polishing paste cannot be transported by air. To make operation easier, avoid environmental pollution, and enhance the polishing efficiency, we coat a pad in polishing powder that can be used for polishing immediately with water. Water is essential because polishing powder cannot work without it. Polishing pads offer convenience for customers who have an urgent need and who stay abroad. They can be transported to customers fast by air.