This is a silicone based adhesive used with the UP! Plus 3D Printer. The glue is painted onto the build platform before a print, and prevents the print from 'curling' off the plaform as the plastic cools. It sounds a little messy, but works extremely well. The glue is actually just 'tacky' not super strong, so when it comes to removing the print, it's easy enough to do.
Comes in a 150ml container. Glue is non-toxic, but should be stored in a cool, dry place. One container's worth lasts a long time.