The RADAR™ EP-PD Spray System is an electric eye activated, asphalt release applicator that mounts to a user-supplied drive-through arch for spraying asphalt truck beds. This system uses an electric pump to draw ready-to-use chemical solution from a user-supplied tank. When a truck breaks the electric eye's line-of-sight, a delay timer allows the driver to position the truck under the nozzle before spraying begins. A run timer limits application to a pre-set time period or until the vehicle leaves the spraying area, whichever is first.