WHAT IS ROCK TUMBLER POLISHING GRIT AND WHERE TO BUY THEM?
Exactly speaking,rock tumbler polishing grit means coarse grit 60/90 silicon carbide,medium grit 180/220 silicon carbide,pre-polish 500 silicon carbide and final polish 1200 fine white aluminum oxide.
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Advantages of rock tumbler polishing grit
High hardness
Silicon carbide with Mohs hardness 9.15
Aluminum oxide with Mohs hardness 9.0
Where to buy the rock tumbler polishing grit?
In fact silicon carbide includes black silicon carbide and green silicon carbide,here silicon carbide means black silicon carbide,also called black SiC or black carborundum.
And aluminum oxide means white fused aluminum oxide,also called white fused alumina or white corundum.
Silicon carbide and aluminum oxide are artifical abrasives,mainly are produced in China.
Zhengzhou haixu abrasives co.,ltd, as a maufacturer and supplier of silicon carbide and aluminum oxide from China.we produce them with traditional production process.
The production lines of our black silicon carbide:
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For aluminum oxide ,the production process is almost the same,only the raw material is different.