Multi-Stage Surface Preparation Systems are utilized for metal and plastic substrates. These systems are used extensively to prepare surfaces prior to painting or to clean parts after machining or forming operations. The number of stages and the design of a Washer System depends upon the customers finish specifications and the complexity of the parts. A Global Finishing Solutions Washer can be designed and customized as a spray, immersion or combination of both types. Most basic Washer Systems include a chemical cleaning stage followed by a water rinse and seal rinse stages. Per specification requirements, the washer may include the addition of phosphate stages, additional rinse stages and deionized or surfactant final rinse stages.