Abstract: This invention is an apparatus and method of removing the unhardened portion of a coating. More specifically, the preferred embodiment is an apparatus that removes the unhardened portion of photopolymer plate after it has been exposed. The apparatus is made of basically four parts, a tank that contains the solvent and cylinder within the tank where the plate to be washed is placed along the inside wall, a carrousel which is made up of cylindrical brushes and flotation chamber, and a motor to drive the carrousel in a rotary fashion. The plate to be washed is placed on the inside wall of the cylinder. The brushes of the carrousel hold the place in place against the wall and when the motor is turned on, these brushes are driven against the plate by centrifugal force and brush off the unhardened portion of the plate.