Responding to reports online that the LG G5 body is composed of plastic, LG said that the uni-body casing of the G5 is composed of a special aluminum alloy, LM201 (Feb. 2016 patent pending). The G5's gray primer beneath the pigment layer of the device's casing may be mistaken for plastic when the coloring is scratched off.

That's why LG clarified that the LM201 material was developed in partnership with the Korea Institute of Industrial Technology for use in high-end sports cars, aircraft and consumer electronic products, and also underlined the
material's durability, rigidity and lightness.

"After the die-casting is complete, the insulating antenna slit is applied directly to the aluminum casing followed by a coating of primer which provides additional insulation and enhances the surface profile for the "microdizing" process, where pigment containing tiny metal particles is applied directly to the primer to provide a smooth and durable finish," LG said.