OK, I always have a small amount of epoxy around the shop. I want to expand my use of it, so not just for woodworking. There are a plethora of selections out there. I'm looking for a system that has a medium cure time. Also, the ease of making small batches vs large batches would be helpful. Not only do I use it for glue ups, but knot filling and other projects.

What do you guys use and recommend?

I assume there is not a shelf life issue with the resin and hardeners.

Thanks