After using Titebond for many years, we tested Corner Weld to see how it stacked up. That was about ten years ago and we haven't used anything else in that time. It provides a quick drying time and dries clear. It is acid free, does not out gas and is water reverseable. I have seen it used to affix golf balls down in a shadow box, with comlpete reverseability. I know it is available from LJ and most major suppliers, and I think United carries it, but could be wrong.