“Please help me source an adhesive that will break down when put in contact with boiling water. The preferred mode of breakdown would be for the adhesive to desolve upon exposure to boiling water for a short time.”
The right choice depends on what needs to be accomplished with the initial bond. To adhere two substrates together and later be able to take them apart easily, you can try Master Bond MB600, a single-component adhesive for glass, metal, and many plastics, that cures at room temperature as well as via exposure to heat. For temporary coating or masking of a surface, I suggest looking at DYMAX 713-Gel, which is a light-curable temporary masking material. Both products dissolve easily in hot water.