You can add water since glue is soluble while metal is not.
That may work, provided that the glues'solvent' is water. -It won't work if the glue is petroleum based and needs acetone, lacquer thinner or other solvents.
You can remove crazy glue from metal by soaking the affected area in warm, soapy water and gently rubbing the glue to loosen it. Alternatively, you can use acetone or nail polish remover to dissolve the glue from the metal surface. Be sure to test the acetone on a small, inconspicuous area first to ensure it doesn't damage the metal.
Please be more specific, rather than just 'glue' (which covers hundreds of types) - The exact type or name always helps.
Glue that will dissolve in water .
It may dissolve with repeated immersion in water. Depends exactly which glue.
Acetone is the best solvent to dissolve wood glue.
Yes, acetone can effectively dissolve super glue.
No glue that I know of can dissolve chalk.
This is quite confusing. -If you mean "plumbers glue that has been glued to the metal pipe" as opposed to "a shower that has been glued to a metal pipe" , then it's a little easier. -Any plumbers glue, be it ABS, PVC or CPVC glue, or Transition cement can be peeled off metal pipe.In future PLEASE say what exactly you mean by "metal pipe" - copper, - galvanised, or which other metal, and please -Name your glue - Most plumbers commonly use at least 4 different glues.
No
There is no metal that starts off as glue.
we use COPYDEX
You name your glue first. There are hundreds of types. "Glue" alone tells us little.