Patent ID: 8732998

Claim:
An exterior sign comprising: a main body including a design; a plating material arranged on an inner surface of the main body, wherein the plating material is visible through the main body; and a double-layered protective layer arranged on the plating material, wherein the double-layered protective layer includes a first protective layer and a second protective layer, wherein the first protective layer is formed from a one-component curing material, which is a resin material of a mixture of a base compound and a solvent, and arranged closer to the plating material than the second protective layer and has a lower level of contractility than the second protective layer, and the second protective layer is formed from a two-component curing material, which is a resin material of a mixture of a base compound, a curing agent, and a solvent, and has a higher level of corrosion resistance than the first protective layer.