Below is a list of Bright Dip Anodizing manufacturers from Philadelphia, Pennsylvania. Bright dip anodizing is an electro-chemical process utilized to improve both the aesthetic and functional properties of aluminum components. Though these processes work with other metals as well, aluminum responds the best to this particular treatment and as such is the most common. Hardening and shining the product, bright dip anodizing of aluminum is popular in industries where the products are to be both functional and aesthetically pleasing.