The key to a good final finish is knowing where to start. If your parts are made of Steel, Brass, Aluminum, or Stainless steel the type of media will play an important part in your initial surface finish. Plating or anodizing after finishing will also determine what media or medias you will use.
Some finishes require a two-step process, the first being a ceramic or plastic media cut-down, followed by a dry process of treated cob or walnut shell media.
For example: if you have brass or aluminum parts that you what a high lustre finish on. You should start with a good pre-plate plastic media, that would bring the surface finish down to about a 9Ra surface finish. You can either plate the part, or continue the process further, with treated cob media for a high lustre part that could be sealed.
For more information see www.technifinish.com or call 1-269-207-3037
