I've been using silica sand for 25 years and for me it cuts better than brown sand. Silica was removed from sale where I now live,hazardous to your health they said,so I found it 75 miles away in another town.
I tried brown sand in different grits but it doesn't cut into rust as well as silica. Black diamond and those other medias work good but I don't reclaim the sand because most of what I blast is to large for my blast cabinet.
Dan


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