Corrosion is the degradation of a material. Most corrosion results from galvanic corrosion, which occurs when two metals of different types (dissimilar metals) are in contact with each other and in contact with an electrolyte, such as water or even moist air. One way to prevent corrosion is to physically isolate the different metals. For example, the use of Powerbrace’s Glide-Pro bearings separates the aluminum hinge from the steel pin and separates the aluminum hinge from the steel butt. Another way to prevent galvanic corrosion is through the use of a sacrificial coating on the parts, such as galvanizing, which sacrifices itself and corrodes, preserving the base metal it is protecting.