Thanks guys. I do use stabilizer and that makes sence to me now. Just did not put two and two together. So my next question is how much stabilizer is enough? I use about 15 drops for every cut of plastic and I have done many reheats on the plastics with them holdin up well; however, I just pulled that count out of the sky. My mold count is very limited so I don't use much when I shoot and reheating is a given for me.