A method for creating a wood like appearance on a synthetic shutter using a sales client device, a network, computer instructions for creating a work order, a tray with scannable tray identifier to hold a shutter, a production client device connected to the network with computer instructions for applying a base coat, a glaze, and a top coat with spray treatment devices to the shutter as it automatically moves on a conveyer system. Scanning a scannable tray identifier with a plurality of sensors to link the tray identifier to the work order and to authenticate and validate the location of the tray on the conveyor system, or to initiate an alerting device. The method uses temperature control environments to control humidity and heating of the shutter while spraying, drying and UV curing.