Can solvent cement be reapplied on top of dried cement if the process gets interrupted?
No. Once the solvent cement has dried (evaporated) the surface of the pipe will be slightly larger in diameter and the fitting socket will be slightly smaller in diameter. This will make it difficult if not impossible to insert the pipe and fitting together. This increased interference fit will also place greater tensile stress on the female fitting socket causing possible premature fitting failure (from splitting).
