Greengrit is a crushed glass grit made from 100% post-consumer recycled glass. It is crushed, cleaned, sized and packaged to provide the ideal blast media for many applications. Its angular shape allows Greengrit to cut through rust, paint and oil, and yet it is lightweight enough to create a low profile on the surface.
Read more at:
https://www.optaminerals.com/solutions/blast-cleaning-abrasives/greengrit-crushed-glass/