Chrome plating is a type of electroplating in which a thin layer of chromium is applied to a metal—or sometimes plastic—object. Chromium is a shiny, naturally-occurring element that acts as a barrier against corrosion, allows items to be cleaned more efficiently, and makes materials more decorative. Below is a brief guide to chrome plating for those considering this process.

An Introduction to Chrome Plating

What is Chrome?

The word “chrome” is simply a shortened form of the word “chromium”. However, because of its popularity, other metals—such as highly polished aluminum or polished stainless steel—are sometimes mislabeled “chrome,” even though they contain no chromium. It is sturdy and stable, but it is rarely used as a manufacturing material. You will not see chrome appliances or commercial auto parts. Instead, it is particularly useful as a coating to protect an underlying component or specific equipment, like nuts and bolts. 

Properties of Chromium

Chromium has several features that make it particularly valuable as an electroplated coating. It is usually a dull gray, but it can be polished to a bright, decorative silver. It is very hard, so it contributes its strength to underlying objects. Moreover, it does not tarnish in air. Rather, when it comes in contact with oxygen, it produces a thin layer of oxide that oxygen cannot penetrate. Because of this, it is immensely useful at keeping rust and corrosion from destroying certain materials.

Types of Chrome Plating

Hard chrome plating is used to protect objects from repetitive wear and tear. Chromium is applied to items, like piston rings and cylinder rods, to keep them in excellent shape for longer periods. Although it is shiny, it is not meant for decoration. Decorative chrome is called nickel-chrome plating. A coating of nickel or copper is applied to smooth out the underlying surface. Then a thin layer of chromium—usually a millionth of an inch thick—goes on top of the nickel. It offers protection against corrosion but not the same level of durability provided by hard chrome. This is often used for items, like outdoor fountains, that don’t experience a significant amount of wear and tear.

To have chrome plating applied to your parts or machinery, contact LWG Finishing in Fairfield, OH. They have served Butler County for five decades and have deep roots in the community. They also specialize in hard coat anodizing, cylinder repair, and centerless grinding. You can learn more about their services on their website or call (513) 860-1156 today to request a price quote.