JT made some good points above. These labels are great for casting but you only get one chance to stick them down. If you unpeeled them and restock, they don't bond as well. Also, Make sure you have at least an 1/8" overlap at your seem. I'm not familiar with that resin. Is it epoxy resin. If so, that might contribute since epoxy resin takes so long to cure. I like to use urethane resin with them - Alumilite Clear because It cures in under 2 hours. Less time for the label to be be weekend or manipulated by the liquid resin. Also, are your labels getting cold or sitting too long prior to casting. I like to cast them within a few hours or less of applying to the tubes. Lastly, we're your labels stored in their original container and how old are they. I've had older labels not stored in the plastic container fail in the past. I hope you find your problem. Good luck!