Hi geeks, just popping over from the hair side, I've had shellac on twice now the first time I had it on it chipped after one day, the second time I had it done by someone else and I told the lady it had chipped last time the day after and she said its probably because she didnt seal the edges, the second time it lasted me 4days then chipped is this normal? I'm not heavy with my hands and was extra carefull the second time but it still chipped, I noticed the second lady didnt use the shellac uv lamps would this make a difference. Xxx