It is a popular chemical stripper that can remove the insulation on magnet wires instead of applying high heat that could anneal or fatigue the copper conductor. Chemical strippers can be messy and takes longer time to strip and clean the wire than my old fashioned mechanical stripping using 600 grit sandpaper. Sandpaper is less messy and faster to do. I first saw Gibson doing this back in 1968 when I visited their factory in Kalamazoo, Michigan now the home of Heritage Guitars.