I am so surprised at the lack of videos and instruction on polishing with the jewelers polishing machine. I have scoured youtube looking for teaching on it and really nothing gave me confidence on the polishing wheel.
I sell sterling silver cuffs using 6 inch by 1 inch sheets of metal. I am always grateful when a customer orders one with a satin finish and my heart sinks when they want high polish. On a ring, its easy to make it shine because there aren't huge flat spots to get shiny. With that cuff, there are 6 square inches of flat area that has to be polished. It really makes me think about any and every wheel, emery paper or anything else that touches that cuff before the polishing wheel. I want to mark it up as little as possible with still doing the best job that I can.
It seems like I either end up barely touching it at all with prefinish work, or I completely sand the cuff. Either way you end up with an unfinished piece staring at the buffing wheels spinning round and round. So what do you do?
I haven't had good success with tripoli on sterling silver. I don't know if its too gritty or what, but it always makes it worse for me. Even if I use very light pressure when I am polishing with it, it still gouges on me. I wouldn't even dream of using one of those hard yellow buffs, you know which ones I mean? Those things make craters and valleys in silver, it looks like the grand canyon. :)
I will look into less powerful pre finish polishing compounds because I still think there is something worthwhile in a step between the bench and final polishes.
I started with red rouge and honestly, I don't love it. I know a few jewelers who pretty much only use that and they get great results, but they are great jewelers and I am not-yet! I use and love Zam, I love that stuff because it works so well. I never gave it credit for a final polish because it is a cut and polish compound and you can shape soft stones with it. Zam can leave a good final polish on sterling silver, you just need to be patient.
I recently added a final High-Luster polishing compound to my arsenal called LUXI Orange. I have been selling quite a bit of
Wide Sterling Silver Rings, they are 20 gauge and 3/4" wide and really fun to make! So I pretty much go from 400 grit sand paper to 600 grit sand paper to Zam and finally finish with a Fine All Finishing 3" Buff and LUXI High Luster Polishing Compound. I get really good results with that combination so far. Plus, I have confidence at the polishing wheel and that really goes a long way when you have a bunch of orders to do.
I will write more on polishing in the near future, we really need to help each other learn and figure this out. Thank you so much for reading, you honor me by doing so! Tommy