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Post by johnjsgems on Dec 12, 2011 16:38:50 GMT -5
Anybody ever tumbled using green SC grit? Reason I ask is I placed a grit order and supplier said they were out of one grit size in black but had it in green. I've seen and used green SC wheels back in the day but according to supplier green or black work the same. The stuff is in a mountain size pile, covered with something like foil and subjected to electric charge. The material closer to core comes out green, the outer stuff black. Hoping someone hear will tell me it works the same from personal use.
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Post by mohs on Dec 12, 2011 19:58:32 GMT -5
interesting silicon carbide is man-made right? I've used the green wheels I've heard of the black wheels Not sure what the difference is or pricing difference is? hope someone will answer that question, also Ed
Ed
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Post by tandl on Dec 12, 2011 21:12:37 GMT -5
i know the green wheels last longer!
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Post by johnjsgems on Dec 12, 2011 22:17:33 GMT -5
The lapidary wheels are usually green and I've heard the same about them lasting longer.
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Post by mohs on Dec 12, 2011 22:36:46 GMT -5
I'm trying to do a little research in between dopping/grinding stones
seem like the green might be a higher grade of carbide than the black not sure what that would mean in a grind/tumble situation
as far as wheels the bonding is bit different on the 2 wheels that may explain why one would last longer & the green wheel seem to be a bit more expensive
anyway, don't mean to sidetrack the original intent of this thread grind &or tumble on Ed f
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Post by tandl on Dec 12, 2011 22:47:13 GMT -5
the last wheels i bought where black, they are not as good as the green
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Post by mohs on Dec 12, 2011 22:56:47 GMT -5
good to know Ted I was kind of thinking of getting one next time or kind of thinking besides my green wheel is lasting me a long time I don't do as much rough grinding with it anymore but they last --if you don't over dress them
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Post by tandl on Dec 12, 2011 23:08:00 GMT -5
i was thinking the green grit would be better, but don`t know ? I will be getting a new green wheel, i can`t cab hard stones with the black, chalcedony and flint, i could see the wheel disappear !
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Post by mohs on Dec 13, 2011 0:04:53 GMT -5
O I think you'll have lot better luck with a green wheel for that hard material Ted
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Post by catmandewe on Dec 13, 2011 0:58:07 GMT -5
I bought some green grit but have not used it enough to make a comparison yet, too cold here to tumble now, my barrels freeze solid.
Tony
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Post by mohs on Dec 13, 2011 5:05:31 GMT -5
Hey Tony Have tried tumbling with anti freeze ? or maybe some alcohol ? it doesn't freeze and the rocks are happy mOstly
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snowdog
fully equipped rock polisher
RIP David Fildes, aka: snowdog
Member since January 2005
Posts: 1,527
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Post by snowdog on Dec 13, 2011 9:06:24 GMT -5
I had looked into this a short time back -- seems the green is a tad bit harder than the black --- which is fine for harder stones but may not break down fast enough for the softer rocks
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Post by johnjsgems on Dec 13, 2011 9:34:14 GMT -5
Thanks everyone. The supplier insists it will work the same in a tumbler but I wanted some unbiased input.
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Post by catmandewe on Dec 13, 2011 11:49:33 GMT -5
Ed, I did try antifreeze last year, was too much mess and cost, just easier to put it away until spring for me. I do still run the vibes inside the house when I have something to finish up, but my rotary tumblers get the winter off.
Tony
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Post by mohs on Dec 13, 2011 21:41:44 GMT -5
Wow interesting Tony ! I was only half joking I can imagine that it would be messy and a bit toxic take the winter off or come to Arizona state of hot rocks ed
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Minnesota Daniel
freely admits to licking rocks
A COUPLE LAKERS
Member since August 2011
Posts: 891
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Post by Minnesota Daniel on Dec 13, 2011 22:27:31 GMT -5
Tony, did you use RV/swimming pool antifreeze? It's the pink stuff, it's non-toxic and didn't think it was that expensive - around 4 dollars a gallon maybe.
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Post by catmandewe on Dec 14, 2011 1:21:03 GMT -5
Hey Ed, We are headed to Arizona in a few weeks anyways, come see us at Desert Gardens if you are that way.
Daniel, I tried both, the green gives the rock a sticky/slick feeling and they smell, the pink does work better but you still get that kind of sticky/slick feeling and it made some of my quartzy pieces turn pink and they looked dyed, not a look I was looking for. Works fine on most of the jaspers but it can color some agates. I also tried isopropyl alchohol (fuel deicer) which worked ok as long as it didn't get below 0 or so, but is more expensive yet but I did like it better than antifreeze. I just need to finish my shop so I can have a room that does not freeze, then there will be no more worries.
Tony
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