ebechan
off to a rocking start
Member since August 2004
Posts: 23
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Post by ebechan on Sept 8, 2004 16:37:22 GMT -5
I was wondering if anyone knew any reason I could not use Sandblasting sillicon carb. or alum. ox. as my tumbling grit? Since i decided to start sandblasting, it seems they are the same thing. Sand blast abrasice comes in all sizes from 20 to 1000. And it seems much cheaper to buy it in the larger quantities used sore sandblasting. I was even thinking i might be able to take the 30 grit I want to use to blast stone, and when it wears down, instead of throwing it out, using it in the tumblers. What do you all think?
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Post by docone31 on Sept 8, 2004 17:56:20 GMT -5
A few tumblers I heard of use sandblasting grit. They start with 36 and run the bbl for five weeks. I wouldn't use reused grit and I do not think the cost savings would really be that. Try a dunnage batch and let us know, lapidary equipment is very expensive. kinda like epoxy. As soon as you label it marine, or package it in oz. tubes the profit for the other guy really climbs. I want to fine blast a rifle barrel and action. I never thought of using fine blasting grit. Food for thought.
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Post by Cher on Sept 8, 2004 18:32:52 GMT -5
My son works for a company that does "tumbling" on a massive scale. Some of the stuff they get also has to be sandblasted so he has worked with both mediums. I thought I'd give him a call and see if he had any opinions on this. He said that under normal circumstances they do not use grit, for the most part they use ceramic media for their processes. He did mention that he tried some aluminum oxide on some pieces once and found it to be extremely aggressive.
[glow=red,2,300]~ Cher ~[/glow]
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