I've been working on this for a while, and it's finally ready. Pictured below is a replacement back for an Ipod touch that looks like it has been gold plated. In fact it has been put through a process knows as PVD and coated with an ultra hard material called titanium nitride. The PVD process is done at several hundred degrees and in vacuum and bonds this ultra hard material onto the surface of the metal. The result is an amazing looking finish that won't scratch.
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