The carrier side is electrically conductive , thermally conductive and acid resisting. It can block X-ray with nice ductility. Backing: Nude Aluminum , Color: Silver; Total Thickness: 0.12mm; Temperature Tolerance:Long Term:149°CShort Term:170°CFeatures&Usage: The carrier side is electrically conductive , thermally conductive and acid resisting. It can block X-ray with nice ductility. Single ...