The bottom metallic which our primary competitor sells, and will not incorporate a tin coating. Black plate includes a gray hue to it so distinct coat shows up as grey and boring. There's no glow to black plate. The metal has no coating, leading to rusting immediately in humid environments. http://whattodoafterremovingpopc23220.designertoblog.com/17984030/how-much-you-need-to-expect-you-ll-pay-for-a-good-remove-popcorn-ceiling-without-checking-for-asbestos