Well, that is something I've never heard off or even considered
The only method that works for me is desoldering wick, excess removed first with a pump, etc then wick to finish it up and free the wires. I only use the blue case soldering wick, called chemwik or chemtronics, I've tried many over the years and only these are good.
I've got proper soldering station here so not a problem with overheating pads but for old radios tend to use a proper transformer soldering gun with a thick copper tip as its just quicker.