Haven't really used the glue (do have the purple stuff) but was commenting on the x-one printer using the supplied blue pad on the heated build plate so taking it out and to dunk is not really feasible!! It would drown the heater element on the bed! I'll have to try the glue on a larger print on that one and see how it comes apart.
I have a glass plate for that one but am not sure how to attach it! There is one bolt in the middle and then the three adjusters - no other corner bolts to use for glass clips.