joejansal
noticing nice landscape pebbles
Member since August 2009
Posts: 98
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Post by joejansal on Jan 27, 2012 20:41:30 GMT -5
hi all,
i use a o polish with corn cob filler in my vibe, i polish seashells, they come out with a matte finish, in my rotary they come out great but need a week, trying to speed up process with the vibe but keep getting matte finish on shells, also seems like a brownish powder coming off the corncorb, bought ceramic but think its to hard for the shells, anyone have another solution would love the input thank you joejan
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Post by susand24224 on Jan 27, 2012 21:46:01 GMT -5
I have never tried to polish seashells, but if your concern is the brown coming off the corncob, perhaps crushed walnut shells would work?
I use the walnut shells for cleaning jewelry, and have noticed that at least in some catalogs they are referenced interchangeably.
Susan
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Post by connrock on Jan 28, 2012 10:03:33 GMT -5
I don't think media such as corn cob (or as susan suggested),walnut shells ,etc will do well with AO and water as the AO will "erode" those softer type media. I've never tried doing sea shells in a rotary or vibe but would try either the ceramic media,glass,or maybe even just do the shells alone? How do you do them in your rotary? Not much help but I'm interested in seeing what others have to say.
connrock
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joejansal
noticing nice landscape pebbles
Member since August 2009
Posts: 98
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Post by joejansal on Feb 5, 2012 18:09:44 GMT -5
thanks susan and connrock,
i appreciate the input, i do my shells in a rotary, same steps as if they were rocks except i do not use course grit the fine and prepolish and ao do the trick with plastic pellets in the pre and polish stages. they come out really great, get loads of compliments on them at the craft shows. i am trying the vibe to help speed up the process, but cant seem to get them as shiny as the rotary. i will try ceramic next, hope it wont chip and break the shells, the rotary gives a small amount of breakage. thank you again for the input. joejan
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joejansal
noticing nice landscape pebbles
Member since August 2009
Posts: 98
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Post by joejansal on Feb 5, 2012 18:14:34 GMT -5
ps the shells are called wampum, which the indians used for money, the more purple in the shell the more its value. i also cut shapes whales - hearts - fish etc. will post some pics in the near future. joe jan
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Post by johnjsgems on Feb 5, 2012 20:09:48 GMT -5
You might want to invest in Diamond Pacific's Vibra Dry compounds. That stuff polishes just about anything. You might want to call them for recommended grit choices. I use the 25,000 and 50,000 for polishing soft and hard rock but never tried shells.
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jspencer
freely admits to licking rocks
Member since March 2011
Posts: 929
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Post by jspencer on Feb 5, 2012 23:22:30 GMT -5
Johnjsgems since you have used the vibra-dri I want to ask you about its use. I was given a sample of the 50.000 to try. I may have overloaded it with rock. I put in polished stones from my vibe and a lot were undercut afterward. Mostly some OJ. The rocks seemed to ride on top of the mix and just vibrate against each other. It looked like it is crushed walnut shells and rice grains to me. Does anyone know what it is made from? I have a lot of the crushed walnut shell. If it gets a finer finish on my rocks I`ll run it after the normal polish stage.
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