Compare iron silicate to other blasting media on performance, cost, and eco-impact in this guide—find the best fit for your needs! Iron silicate is known for its pragmatic strength. Its angular granules work through contaminants as if with an industrial resolve. The medium is coarse and a robust cleanser of metal surfaces, stripping away rust, scale, and old coatings with ease. The material’s hardness—often around 6 to 7 on the Moh’s scale—equips it to tackle challenging surfaces without succumbing to rapid wear itself.