Wiley Horne
Years ago, the good soul and carving instructor Nora Hall sold me some carving gouges, and along with the gouges, two German-marked buffing wheels and a block of sharpening paste. You smear the sharpening paste on the wheel.

The buffing wheels are 12mm arbor and ~4-3/4” diameter. The sharpening paste is curious: it is light green in color, and has the property that it is stiff at room temp, but liquifies as the blade/wheel surface heats up. And the liquification is not gradual—it occurs suddenly when the blade/wheel interface hits a particular temp, which ancient memory tells me is about 160F. Once this liquification happens, the cutting power of the paste is activated, and it puts a heck on an edge on carbon steel.

As I say, both the wheel and the paste are German made and marked.
Does anyone have experience with this liquifying paste? And what is it? And what is the cutting principle associated with the heat activation?

Wiley