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Old 06-07-2013, 06:21 PM
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Under Carriage Blasting

I need to fix some rust on the bottom of my '66 Mustang so I'm considering blasting the undercarriage. I've been doing some research on the different media's and it seems as though Black Diamond is recommended by quite a few people. My question is does anyone know just how much silicia is in Black Diamond.

I know I need to have a good respirator while blasting which I do, but when I'm sweeping and cleaning up, what 's the risk level? I'm planning on doing this in my driveway and I dont want to my wife or kids breathing the wrong thing in. I know regular sand silicia is definitely a no go, but not sure about this Black Diamond.

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Old 06-07-2013, 10:07 PM
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It's coal slag.
Free silica is very, very low.
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Old 06-08-2013, 07:44 AM
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Black lung. ?

Coal miners used to get Black lung disease. but that was from coal dust. Most of the carbon is burned out and leaves slag. If you have a lot of rust I would consider a sub frame kit and mabe adding 1 X 2 steel tubes to the bottom rocker flange and tie it to the heafy structure pieces.
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