And also, I wouldn't argue against sucess. This episode has apparently worked out well. I have heard many of the horror stories and so I know that working with resins can be difficult and frustrating. As previously posted, different formulations, quality and age of the products, temperature and humidity conditions at cure, and of course the human element in the mix, can contribute to some odd results. I have just about eliminated using resins in models, in favor of good quality CA. In a meeting with a "ZAP" factory rep, I learned that the bond strength of CA is actually much greater than our old friend the epoxy. I now use it on high stress areas such as firewalls, wing center sections, including glassing the center section with light cloth. A bit more costly to be sure, but fast, convenient, and secure. The caveat is to avoid using the kicker. Each little spritz will significantly weaken the bond strength. I use the nice thin parachute rip-stop nylon with thin CA to reinforce the inside of those cheap plastic cowls, wheel pants, etc. It works like magic, stopping all the usual cracking and tearing. Well, I guess I'm getting off topic now. Thanks to all contributors to this thread.