Jim, I haven't had any epoxy " glue " in my shop for two decades. I do a fair amount epoxy fiberglass fabrication so I always have a gallon of laminating resin around. When I need an epoxy glue I mix up some of my laminating resin and add some fillers such as milled fiber and cabosil. This thickens the resin so it can be used as a paste adhesive like the Devcon 30 minute but is much stronger due to the fiber that was added to the matrix. It also gives you close to an hour working time.