I think this is the stuff, not sure thoAfter doing some more research, I figured out that the Diamond Black product I was originally looking at is definitely a liquid.
http://generalhydroponics.com/site/gh/docs/prod_msds/DiamondBlackMSDS.pdf
But I can't find any granular diamond black anywhere online. Has anyone had luck finding any? All I was able to find was a pdf of the label for the granular version.
http://generalhydroponics.com/genhydro_US/product_labels/diamondblack_1lb.pdf
Have they stopped making it in this version?
http://www.tractorsupply.com/en/store/little-fury-fine-blend-(30-60)-blasting-grit-50-lb
Bump: nope sorry,, wrong stuff