Question: I have a smaller tabletop vibratory bowl that I am setting up to do small parts with. Mostly I am looking at doing carburetor parts to polish the aluminum.What material should I use? I am completely new to this. I’m not looking for a 100% show shine, just shiny aluminum. Any input is appreciated.
Response: A 3-step process can produce a very smooth, polished finish on aluminum parts. A first step using a light cutting plastic media followed by a second step using a polishing ceramic media should result in a smooth, uniform finish. Both of these step are run wet with an appropriate tumbling compound.If a higher polish is required, a third dry tumbling step using walnut shell grit with red rouge or a polishing cream will bring out the shine on the part.