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Garnet Abrasives
BLASTONE HAS BEEN WORKING AS A DISTRIBUTOR OF GMA GARNET FOR OVER 35 YEARS
Over the last 30 years, garnet has become the primary abrasive used for sandblasting in America, Australia, and New Zealand. BlastOne has helped contractors on different projects across the United States and the globe and we understand the requirements that different projects bring.
While there is no such thing as a does-all sandblasting abrasive, GMA Garnet comes closest. It has been the abrasive of choice for blasting multiple materials – steel, aluminium, stainless steel, glass. It has performed tasks as varied as frosting glass, cleaning up stainless steel after TIG welding, and removing corrosion on marine vessels.
GMA Garnet has provided a solution to challenges such as…
Needed as clean a surface as possible – GMA Garnet’s washing and screening process removes any contaminant from the sandblasting abrasive that would remain on the surface after impacting it.
Needed as high a blasting rate as possible – GMA Garnet’s unique crystal structure and geology, combined with engineered blend sizing, ensures a high productivity rate.
Needed to blast with as low as possible abrasive consumption – The same characteristics that ensure excellent productivity when using GMA Garnet also ensure low consumption of sandblasting abrasive per square foot/metre of finished blasted surface.
Needed to change to a non free-silica containing abrasive – Many mined abrasive blasting sands contain high levels of free-silica, the substance that causes the irreversible lung condition, silicosis. GMA Garnet’s free-silica levels are well below international OHS mandated maximum levels.
Showing all 4 results
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GMA PremiumBlast 30/60 Garnet Abrasive Media for Sandblasting offers a balanced blend for high-efficiency coating removal and rust treatment. Engineered for consistent performance and reduced dust, this economical abrasive media supports general industrial maintenance and precise surface preparation.- Ideal for coating removal and medium-to-heavy rust treatment
- Produces a consistent surface profile of 60–100 microns (2.5–4.0 mil)
- Blasting rates: 15–20 m²/hr with a consumption rate of approx. 320 kg/hr
- Sub-rounded, pink to reddish-brown garnet grains minimize dust and enhance visibility
- Safe, inert natural mineral with very low silica content
- Compatible with wet and dry blasting systems
- Economical for single use and recyclable in suitable applications
- SKU: P-GAPB | MPN: GAPB
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GMA SpeedBlast Garnet Abrasive Media for Sandblasting is an economical, high-performance abrasive ideal for general-purpose surface preparation. Made from natural Australian garnet, it offers fast cleaning rates, low dust emissions, and a uniform profile for optimal coating adhesion.- General-purpose abrasive for industrial surface preparation
- Produces a consistent surface profile of 50–100 microns (2.0–4.0 mil)
- Blasting rates: 15–20 m²/hr with consumption of approx. 320 kg/hr
- Low dust, sub-rounded grain for cleaner visibility and safer operation
- Compatible with wet and dry blasting systems
- Economical and recyclable, made from inert natural garnet mineral
- Suitable for commercial buildings, plants, processing facilities, and more
- SKU: P-GASB | MPN: GASB
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GMA ToughBlast Garnet Abrasive is an engineered blend designed to power through the most demanding coating removal projects. Ideal for industrial sandblasting, this high-performance abrasive combines the cutting power of hard rock garnet with the durability of alluvial garnet, delivering faster results, cleaner finishes, and reduced consumption.
- Removes thick coatings (15–30 mils) with superior speed and efficiency
- Delivers a uniform surface profile of 70–90 μm (3.0–3.75 mil)
- Blasting rates up to 30 m²/hr and low dust levels for safer operation
- Engineered for shipyards, tank farms, petrochemical, and infrastructure maintenance
- Cost-effective with lower abrasive consumption (as low as 16kg/m²)
- Recyclability rated at 4/10 with low-to-medium dust factor
- Available in 16 and 36 mesh sizes
- MilSpec approved for consistent quality and performance
- SKU: P-GXTB | MPN: GX2
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The GMA Classic Cut 80 Mesh Garnet Abrasive Media is a high-performance abrasive ideal for sandblasting and water jet applications. Perfect for new steel preparation and mill scale removal, this #80 mesh garnet delivers a 1–2 mil profile, low dust generation, and high productivity, exceeding 20 m2/hr on mill scale. It’s economical, recyclable, and meets ISO quality standards. Features:
- Applications: New steel, mill scale, rust, and coating removal.
- Blasting rate: Over 20 m2/hr for mill scale; consumption ~250 kg/hr.
- Low dust generation: Cleaner, more efficient operation.
- Recyclable: Single-use or multiple recycling cycles.
- Meets ISO 11126/11127: Tested for quality and safety.
- Packaging: Available in skid quantities or bulk orders.
