Electroless Nickel Plating
Electroless Nickel is a hard wearing and protective finish that is highly resistant to wear and corrosion. Plating delivers a uniform coating that is ideal for parts with intricate curves and details such as brake calipers. The natural protective shell of a plated finish protects the caliper from harsh chemicals and elements found in brake fluid and brake pad compounds.
And finally, the real reason why you might be considering this for your own parts; the jewelry-like decorative finish as well as the warm natural nickel hue.