"It’s important that the manicurist let the polish dry between coats to allow the solvents to fully evaporate. If you apply the next coat while the previous layer is wet, the solvents will become trapped and it will never dry completely, which will cause the lacquer to peel. You should wait two minutes between each layer, starting with the base coat. When base coat, top coat and polish are first applied – the nail looks very wet. After a minute or two, you will notice that the super wet look dissipates a bit and the nail appears less wet, which tells you that the solvents have evaporated and that it’s time to apply the next coat.
If you apply very thin coats, letting the polish dry in between each layer so that the solvents evaporate, it will wear better and last longer. This allows the lacquer to dry faster, adhere better and last longer on the nail."