Nothing
screams “check me out” like a new set of chrome rims for
your vehicle. Chrome is by far the most popular finish for many aftermarket
wheel sets. The shine that only chrome can provide can make any car
look like a million dollars.
Chrome, short for Chromium, is a naturally occurring
chemical that takes the form of metal. However, even though it’s
a metal, it cannot be used as a solid material. There is no such thing
as solid chrome. In most cases, when something is referred to as chrome,
it usually means that it’s been plated, usually over steel or
aluminum.
Chrome rims are usually sought after due to their mirror-like
appearance. However, not all that glitters is chrome. Electro-polished
steel and aluminum often resemble the look of chrome, but when compared
side by side, the differences become more apparent. As a finish, chrome
has a much brighter, deeper surface reflection. When properly polished,
it can produce a brilliance that is unmatched by any other plating
material.
Chrome rims generally use what is called “decorative
chrome plating”, which is different than the “hard chrome
plating” that is often used for industrial applications such
as hydraulic cylinders and piston rings. There are two major differences
between these two types of plating. Number one is the actual thickness
of the plating. Decorative plating is much thinner than hard plating,
being measure in millionths of an inch, as opposed to thousandths
of an inch for hard plating. Secondly, decorative plating usually
requires a layer of nickel be applied before the chrome, which is
why it’s often referred to as nickel-chrome plating.
Because wheels are in constant contact with the ground,
through all kinds of weather and driving conditions, they tend to
be the first places to show the effects of corrosion. This is the
primary reason that wheels are made with a protective layer of some
kind. Chrome is used in abundance for just this purpose. The material
has an extremely high resistance to all kinds of corrosive effects
including rust. Chrome is also exceptionally easy to clean and maintain,
making it a very functional type of protective plating.
However, the most common reason that people choose chrome
rims is because, let’s face it, they just look good. Nothing
flashes quite like sunlight reflecting off of a chrome wheel. Wheel
manufacturers are not oblivious to this fact, and most carry a wide
variety of different wheel designs that are plated in chrome. Many
car makers actually make chrome wheels that can be used to replace
the wheels that were put on at the factory.
High quality chrome rims can be quite expensive to purchase.
It is not unusual for a person to spend several thousand dollars on
a new set of these wheels. When spending this kind of money though,
it is important to know what you’re getting. If the manufacturer
claims that the chrome is applied by “dipping” or “annealing”,
do not buy those wheels. Real chrome can only be applied through electro
plating, and any other process infers that it is not true chrome.