Please note: our suppliers are running down their lapidary stocks, so if you need to restock, do it now!
Without silicon carbide grits it would be very difficult to run a rock tumbler. The various grits, for example: 20, 60, 80, 220 and 400, 600 and 1200 are used to progressively grind out the imperfections on your rocks, with the 20 grit being the most aggressive.
Another important material for the tumble process is the Polish, this comes last in the process. The common polishes are Cerium Oxide, Pumice Powder, Tin Oxide and and Zinc Oxide.
These grits and polishes are also used during other Lapidary processes as well. For example grinding and shaping rocks on a Flap Lap and Vibrating Laps and the polishes are again used as the final step.
You can find your Silicon Carbide Grits and Polishes below.
We have partnered with UKGE Group as our preferred supplier of these items, links to relevant sections of their web site are below:
Polishing powders for rock tumblers
To help improve your polishing step try using Plastic Pellets to cushion the load:
Affiliate Notice
We are in an affiliate partnership with UKGE Group for all grit, polish and media products referred to on this page. This means that if you make a purchase we will earn commission for that sale.
We get all our silicon carbide grits, media and polishes from the UKGE Group. We have always found that their level of customer service and speed of delivering orders to be second to none. Therefore we have no problem in recommending their products and services to our readers.

