What is the problem of nail falling off the next day?

There are too many problems, the edges are not properly attached to the skin, the primer is not evenly applied, and the illumination time is short. There is something wrong with the product quality. When you drop something that comes into contact with water and grease, it falls off as a whole, or the fingertip position starts first. There are too many reasons, most of which are caused by improper operation. You can go to our school. I wrote an article on how to deal with the common problems of nail polish glue, which can solve most of the problems you encounter when making nail polish glue.