I once heard of a product that is used to remove paint from door hardware such as hinges and door knobs. It was just described as a product where you diluted it in water, placed the hardware in the solution and then moderately heated it. I think I saw it on Hometime. Any one (actually) used this?

I've also heard that you can use a detergent, but I don't recall whether it was laundry detergent or dishwashing detergent for that matter. Any one (actually) tried this, or even heard of it?

Yes, I know other techniques such as isopropyl alchohol or the old standby paint removers, so spare me the suggestions that are outside of the scope of these questions.

Thanks in advance.