Poorboy's World Clay Lube is a lubricious lubricant designed for use with clay bars and clay towels. Detailing clay removes bonded contaminants that washing does not, but in order to use a clay bar you also need a specialized lubricant. Poorboy's World Clay Lube provides plenty of lubrication for the clay bar to glide so marring and scratching doesn't occur, plus it's easy to buff off the surface. Poorboy's World Clay Lube does not leave any residue behind. Poorboy's World Clay Lube can be used in sun or shade.