Concentrated nitric acid will remove all organics, including your skin, wire insulation, etc. It will work on a glass plate, but the fumes would eventually damage the plastics on your printer unless you remove the glass plate to clean it. Nitric acid will destroy most build surfaces that are added to glass. To a lesser extent concentrated sulfuric acid works, but it tends to leave carbon behind. With these acids it takes special gloves, and I would not even depend too heavily on them always working. The more concentrated the acids (the less water), the less they will attack metals. Note: this will quickly strip the paint off metal parts.
Thus, you probably cannot find an aggressive chemical that is practical for you to use.