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  #11  
Old 09-17-2013, 12:01 PM
Gareth Davies Gareth Davies is offline
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How about expendable shot blasting media such as aluminium oxide or copper slag?

I think that whatever you choose there will always be a certain element of it that is harmful to health and would agree that welding and grinding are of greater cause for concern.
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  #12  
Old 09-20-2013, 09:20 PM
John Buchtenkirch John Buchtenkirch is online now
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I would think small stainless balls would be the safest, canít turn into dust or rust but very expensive. I looked into it one time and came up with over $200 to fill my large bag. Expensive but have you priced new lungs lately ? ~ John Buchtenkirch
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  #13  
Old 01-25-2016, 06:28 PM
weldtoride weldtoride is offline
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Default Pounding Sand

Lots has been written in different threads re: dangers of silica.

Taking more than a hint from Gareth,
Quote:
Originally Posted by Gareth Davies View Post
How about expendable shot blasting media such as aluminium oxide or copper slag? .....
As I was researching a new low silica sand for my blast cabinet, I read that Black Diamond has very low silica content. So I looked up the MSDS on Black Diamond, it has less than 1% silica content, in fact, according to the document referenced below,
Quote:
"Silica concentrations have been below quantification levels, less than ≤ 0.36%, in samples taken each year since 2000."

http://www.ati-blackdiamond.com/medi...sds-4B5219.pdf
Black Diamond is a readily available by-product of coal fired power plants here in the US, I paid $7.50 for 50 lbs at my local big box farm store recently.

It comes in 4 grits: extra fine through coarse. Here's the fine grit, works just fine in my blast cabinet. Also pounds just like the sand I removed from my bag, and no dust emanating from the Velcro closure like the play sand had.

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Last edited by weldtoride; 01-26-2016 at 10:00 AM.
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  #14  
Old 01-25-2016, 09:18 PM
Mike Rouse Mike Rouse is offline
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Mix some mineral oil. Also known as baby oil in with your sand bag sand. No more dust. And the bag is tighter.
Try it.
Mike
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