Abstract: A clamping device for use with stock to be adhesed into a position where it will be routed to form a cove or other shaped routed joint at the interface of a vertical and a horizontal surface of Corian.TM. or equal rigid plastic sheets typically at the junction of a countertop and a backsplash respectively for kitchens and bathrooms. The device includes a main body having a pair of spaced suction cups at opposite ends of the main body portion. Each of the suction cups is disposed on an extremity or terminal section of the central section of the main body at a similar but oppositely directed angle relative to the central section of the main body portion. The central section also includes a spring-loaded retaining notch disposed therethrough at about the midpoint of the central section for the stock to be routed.