As Viking indicated, this stuff is nothing short of miraculous. The various solvents and wires - 0000 and Kurly Kate Kitchen scrubber strands on brushes all work, but they are work. The leadaway cloth removes lead with a single pass or wipe. It is not abrasive - but do not ask what the chemicals involved are - it's magic- smoke and mirrors- it works. It is also available in small blister packs of pre-cut patches.