A coating composition and a pigment comprising a surface-treated clay mixture used therein, and, optionally, microspheres, in which the coating composition comprises a curable or hardenable resin system into which is dispersed the pigment. The control circuit controls the drive circuit by a drive pulse to perform a burst dimming control over the discharge lamp. A cable hanger bears the weight of the cable and the weight of the dewatering pump. The device further includes a controller connected to the at least one plate assembly motor and to the first and second servo motors to coordinate the motion of the first and second seal plates to perform a seal operation on a web while traveling with the web.