I use CA a lot in my guitar shop, and yes, it does generate heat when applied on some materials or when hit with an accelerator. I use it to reglue braces and cleats inside guitars when I can't find a way to clamp it. You dampen the area with a small sponge, and it will set in seconds. Here's a helpful tip when working with CA inside any tight, enclosed space like an acoustic guitar.... Wear rubber gloves. Ask me how I know. Imagine being elbow deep inside a guitar body with your fingers super-glued securely inside.