PVD gold refers to a gold coating applied through a process called Physical Vapor Deposition. This coating technique involves vaporizing a solid material, in this case, gold, and then depositing it as a thin, bonded layer onto a substrate. This method creates a durable and often more cost-effective alternative to solid gold construction or traditional electroplating. An example would be gold-toned watch cases achieved by using this process, or jewelry pieces that require a strong, tarnish-resistant gold surface.
The significance of this coating lies in its enhanced durability, scratch resistance, and uniform application compared to other plating methods. It allows for imparting a luxurious golden aesthetic to various items across industries, from jewelry and watches to hardware and automotive components. Historically, surface coatings have been used to enhance the properties of materials, and this technology represents an advanced iteration, providing both aesthetic appeal and improved functional performance.