Hi can anyone help me please? I have been doing fibreglass for 6 years now and recently my clients and my own nails are cracking all over. I thought it was the resin so i got new resin and new activator from the same supplier. I only bought small bottles incase there was a problem, I bought bigger bottles from my other supplier and since have done my own nails with it and they are fine. Has anyone had cracking before and do we think the star nails stuff i bought from the local sally is faulty?