4.Do I need to take training before using this kit? What’s the reason the polished area looks dark? Why brightness is uneven in the polished area?

What’s the reason the polished area looks dark? Why brightness is uneven in the polished area?

Answer: To be clear, we will send a video demoing the use of this kit by WeChat. If you don’t receive this video after buying our product, you can ask for it. This 2018 glass scratch repair kit is easy to learn and operate because there are only two grinding processes and one polishing process. The first grinding process is to get scratches off; the second grinding process is to replace coarse grinding marks with fine grinding marks, for ease of polishing; the last step is polishing. The following are problems needing attention: 1. Keep the grinding sheet totally in contact with glass and not askew to avoid deformation, darkness, and fine lines after polishing. 2. Before polishing, obverse grinding marks carefully and make sure that fine grinding marks cover coarse grinding marks. These two kinds of marks are different, the former exquisite and the latter rough. 3. During polishing, add water to keep the polished area moisture. Observe the repair effect against light. If the effect is satisfactory, repair is complete; if the effect is not very satisfactory at individual sites, continue polishing till the acceptance standard is reached. 4. If the repair effect is not obvious after polishing, you should repeat coarse grinding, fine grinding, and polishing processes in cycle till the acceptance standard is reached. 5. Sometimes brightness is uneven in the repair area. This is because grinding and polishing are in place at the center but not in place around. The right solution is to ensure the fine grinding area is bigger than the coarse grinding area and smaller than the polishing area. Alternatively, you can contact our salesman in time. And we will offer guidance on phone or in WeChat video chatting to ensure you can master the usage of this kit.