Patent ID: 8790161

Claim:
A truing device for a disposable razor blade, comprising: a) an elongated base portion extending along a longitudinal axis and having opposed first and second side walls, opposed first and second end walls, and a substantially planer bottom face; and b) a smooth top working surface portion extending between the opposed first and second end walls and configured to engage at least a portion of a disposable razor blade, wherein the smooth top working surface portion is comprised of a synthetic hard surface material comprised of a cured precursor composition, the precursor composition comprising a calcium carbonate component, a thermosetting polyester resin component, and an additive component comprising at least one additive selected from a liquid colorant, dry pigment, magnetic material, and stabilizer; wherein in use the smooth top working surface of the device is capable of truing an edge of a disposable razor blade; and wherein in use the smooth top working surface of the device is not capable of restoring sharpness of an edge of a disposable razor blade.