Garnet vs. Other Blasting Media

Garnet is a popular choice over silica sand and coal slag when a project calls for lower dust generation, recyclability, and a harder cutting edge (Mohs 6.5–7.5). It's commonly specified for:

• Metal Fabrication & Shipyards: Medium-to-heavy coatings and rust removal on steel substrates, often alongside steel grit or steel shot in recyclable blast systems
• Waterjet Cutting: A standard abrasive additive for precision cutting of metal, stone, and glass, where consistent grain size and hardness are critical
• Liquid Filtration: As a filter media in water and wastewater treatment applications, alongside AGSCO's dedicated filter sand line
• General Surface Preparation: A lower-dust alternative for concrete and steel prep ahead of coatings, in place of raw blast aggregates

Garnet Grit Sizes & Specifications

AGSCO garnet is available from #8 grit (coarse) through #120 grit (fine), in sub-rounded to angular grain shapes, with a Mohs hardness of 6.5–7.5. Coarser grades are suited to heavy coatings and mill scale removal; finer grades are used for finishing work and waterjet applications where a tighter particle size distribution is required. Standard packaging includes 55 lb. bags and super sacks, with custom packaging available on request.

Choose AGSCO for Your Garnet Abrasive Media

Ready to switch to a more efficient blasting media? Request a quote on garnet blasting media in your required mesh size, or contact our specialists to discuss custom blends and packaging. Explore our full line of abrasive blasting media or browse all minerals and abrasives AGSCO supplies.

Frequently Asked Questions About Garnet

What type of garnet sand is used for blasting?

Blasting garnet is typically an angular to sub-rounded, alluvial or crushed rock garnet with a Mohs hardness around 6.5–7.5. It's graded by mesh size (commonly #8 to #120 grit) to match different surface preparation needs, from aggressive coatings removal to fine finishing work.

Which is better for blasting, silica sand or garnet?

Garnet generally outperforms silica sand for blasting because it's harder, cuts faster, generates less airborne dust, and can be recycled several times before breaking down. Silica sand costs less upfront but wears out faster and produces more respirable dust during use.

Is garnet blasting media reusable?

Yes. Garnet's strong grain structure allows it to be recycled for multiple blasting passes before it breaks down, unlike single-use media like silica sand. This recyclability lowers long-term material costs, making garnet a popular choice for high-volume industrial blasting operations.

What is garnet blasting media used for?

Garnet blasting media is used for medium-to-heavy metal cleaning, rust removal, and coatings removal on steel and other substrates. It's also widely used as an abrasive additive for waterjet cutting and as a filtration media in water treatment systems, thanks to its hardness, angular grain shape, and chemical inertness.

What grit size is garnet blasting media?

Garnet blasting media is available in a range of grit sizes, typically from #8 grit (coarse, for heavy coatings removal) to #120 grit (fine, for lighter finishing work). The right grit depends on the surface profile and coating thickness being removed.

Can garnet be used for waterjet cutting?

Yes. Garnet is one of the most common abrasives used in waterjet cutting because of its hardness, consistent grain shape, and ability to produce a clean, precise cut on metal, stone, and glass. Finer mesh sizes (typically #80–#120) are standard for waterjet applications.