Where to buy grit for rock tumbler

Rock Tumbler Grit 2 1lb. Barrel, 1 lb. Rock Tumbler Grit 3 8 Oz. Only registered users can write reviews. Please log in or register. YES NO. This product is not Fulfilled by Ubuy and can take minimum 10 days in delivery.

We might cancel the product from the order and refund you if any issue arise with the delivery of this product. Availability Out of stock. Note: Electronic products sold in US store operate on volts, a step-down power converter is required for the smooth device function.

It is mandatory to know the wattage of the device in order to choose the appropriate power converter. For most hobbyists, we recommend the Polly Plastics Grit Kit which gives you all four types of grit for each stage of the tumbling cycle.

Grit is the media used to grind down and shape stones or other objects in a tumbler and is made of silicon carbide. Because grit is so hard, as you may have noticed in your tumbling, some softer materials containing different mineralization elements such as calcite may be gouged out and can give the rocks a texture.

Because rocks vary in hardness, it is standard practice, for pre-polish and polish stages, to separate the rocks out by hardness. The reason for this is that rocks that are harder will grind rocks of lower hardness, preventing a high polish. When people talk about different compounds to use for tumbling, they are referring to the polishing grit. This is a form of grit that is so fine that it gives the stones a polish. Thus we call it polish. Tin oxide produces better results for softer stones, and cerium oxide provides better results for glass and obsidian.

It is important to note that you should not mix polishes; doing so may hinder the results that a polish would achieve on its own. A rule of thumb is that, if you see grit at the bottom of your barrel after one week, you are using too much grit. When it comes to polishing, I find that I can add one tablespoon of polish per pound of rock and sometimes even more. It is also recommended to use plastic pellets to help cushion the stones as the polish stage is where you will notice the most breakage.

However, the slurry that your tumbler creates can be used from the previous stage to help the grinding action. I recommend that you thoroughly wash your rocks before putting them in polish — you also need to wash the barrel.

The standard three grits, , , and , and polish are what you will need for any tumbling. When using vibratory tumblers, it is best to use the grit that is a strait grade as grit contains sizes ranging from 60 to 90 meshes.

If you use a vibratory tumbler, be forewarned that the lower size grit you use, the faster you will need to replace the bowl. I like to do low number grit tumbling in a rotary tumbler.

As it breaks down into smaller particles, the media will expose new, sharp edges. Therefore, black silicon carbide can be best used over and over, such as in a rock tumbler. It is very effective in grinding almost any material other than Corundum. Simply keep adding new coarser grit, and as the media breaks down, it will create a "working blend" of particles.

Yet because of its much lower cost when compared with diamond or B4C, it is widely used for grinding nonferrous materials, finishing tough and hard materials, as well as filling up ceramic parts. It is therefore perfect as a rock tumbling media, unless you are processing materials at a 9 or higher on the Mohs hardness scale.

In such a case, you should use Boron Carbide instead. These are some of the few the use of Boron Carbide and its cost, is justified. The grit size appropriate for your application will depend on the size and hardess, shape, and roughness of what you are processing.

Wholesale packaging is in lb drums. Email us for wholesale pricing on drum orders , as this will require custom freight rates. Loading Dock: Generally, you need to have a commercial address with loading dock to receive orders over lbs. If you do not, we can ship it to a local terminal and you pick it up yourself from the terminal.

We can also ship to a residential address, but this is very costly and not recommended.