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Post by glennz01 on Aug 5, 2014 22:31:51 GMT -5
This method is for only hard stones (agate, jasper, flint) and so on. Well this method uses pure carbide grit about twice the size of 60 grit It looks like the photo below. Basically you can run this stuff for 2 weeks with this grit. It will not to much tumble and grind the stones as i thought it would but it will dull the sharp corners a little and give the stone a natural looking polish that looks like the wind polished it.. Afterwords you can put it in the regular polish to get a nice gloss. I discovered this method by accedent... This grit eats up softer stones like nothing though. Nice thing is this grit will last forever (or at least 4 weeks with no signs of wear) I only have 1 stone that got polished this way now, the rest are back in the tumbler with regular grit. It will also remove most of the oxidation that regular silicon carbide will not.
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Post by braders on Aug 6, 2014 7:47:53 GMT -5
Looks like sand blasting grit !! Which iv always wondered how well it would work to get the sandy layer off pet wood like bluforest . Should be faster then soaking in vinegar or another type of acid .
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Post by glennz01 on Aug 6, 2014 10:34:53 GMT -5
Its not sand blasting grit, it is what they attach to machines that they never want to wear down. This stuff takes up the space that 1/2 lb of silicon carbide does but weighs a lot more. Also that little bit costs $50 but it is worth it in my opinion if you want to tumble soft stuff fast (you can skip stage 2 grit) When i dig the rocks out i'll throw up a photo of some of the polishing it does.
I do mix a little garnet and slag sand blasting mix in with my regular silicon carbide rough grit, It does help the tumbling prosess a little but they round fast
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