raptureboy, it's all just opinions. I didn't knock the product, it has its uses, but it doesn't present itself well for me in building aircraft. Can you put a name to the mineral spirits? I've used alcohol, lacquer thinner and acetone. I agree, it's easy to sand and I've used it to repair foam for that reason, but I'm not about to sand a joint I just glued because I couldn't control the ooze. Epoxy works great, does not need to be, and should not be clamped tight because it is a contact adhesive and relies on a thin ribbon to secure the joint.

Bob