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GMA ExtremeBlast™ Blasting Media

Coarsest Grade Garnet for Extreme Coating Removal

When the job demands maximum cutting power, GMA ExtremeBlast™ delivers. As our coarsest garnet grade, this engineered blend of alluvial and hard rock garnet is built for removing the most resilient coatings in the harshest industrial conditions. From refineries and shipyards to offshore platforms, ExtremeBlast™ excels where other abrasives fall short.

The angular hard rock garnet cuts through thick industrial coatings, while the sub-angular alluvial garnet sweeps away surface contaminants — leaving an exceptionally clean, uniform profile ready for inspection and recoating.

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UNIQUE FEATURES

  • Coarsest garnet grade for removal of exceptionally tough coatings and marine fouling.
  • Dual-action blend of angular hard rock and durable sub-angular alluvial garnet.
  • Creates a consistent surface profile of 3.5–4.5 mil (90–115 μm).
  • Capable of removing coatings up to and above 30 mil in thickness.
  • Meets all industry, government, and environmental standards.

BENEFITS

  • Productivity – Cuts blasting hours by 30–50% compared to slag abrasives, with rates up to 260 ft²/hr.
  • Cost Effective – Lower abrasive consumption, labor, cleanup, and disposal costs (as low as 2 lb/ft²).
  • Superior Finish – Produces a uniform, high-adhesion profile.
  • Safe – Low dust generation with full compliance to safety and environmental regulations.

FREQUENTLY ASKED QUESTIONS

Find answers to common questions about our GMA ExtremeBlast blast media.

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GMA ExtremeBlast™ is our coarsest grade garnet abrasive, engineered to handle the toughest coating removal jobs. Its unique blend of angular hard rock and sub-angular alluvial garnet delivers fast, efficient cleaning with a consistent surface profile.

Visit our blast media section to see more about our full line of media and abrasives.

ExtremeBlast™ outperforms slag abrasives, cutting blasting hours by up to 50% while using less material. Its hardness and blend design allow it to remove coatings up to 30 mil thick and maintain uniformity.

Yes. It is ideal for removing marine coatings, ballast tank linings, and heavy fouling, making it a top choice for shipyards and offshore platforms.

Yes. Like all GMA Garnet™ products, ExtremeBlast™ meets or exceeds all safety and environmental standards and produces less dust for improved operator visibility.

The angular hard rock garnet aggressively cuts through thick coatings, while the finer, durable alluvial garnet clears contaminants and embedment. This combination ensures both speed and a superior finish.

  • Oil & gas (onshore and offshore)
  • Tank exteriors and liners
  • Water and wastewater treatment facilities
  • Railcars
  • Energy generation infrastructure
  • Shipyard maintenance and repair
  • Water towers
  • Bridges
  • No minimum order at any of our locations: North Wales, PA; Grand Rapids, MI; Greensboro, NC
  • Mix and Match skids of different grades OR medias available at no extra charge
  • Logistics: We can deliver to virtually any location, including construction sites, residential addresses, military complexes, nearby terminals.
  • Need rush service, lift gate, call ahead, or appt? No problem!
  • All Major credit cards accepted
  • Free Project Support: Consumption and production rates, scheduling, application recommendations
  • Ready to Order? Contact us now!

ESCA BLAST IS PROUD TO BE YOUR TURN-KEY SUPPLIER FOR GMA EXTREMEBLAST BLASTING MEDIA!

We can support your media blasting project from start to finish. We rent and sell micro-abrasion equipment, can ship nationwide, and provide additional technical expertise on demand. We have consulted and supplied blast media and equipment on many high-profile projects, including the Rodin Museum, Daughters of the American Revolution HQ Building, Monticello, Gettysburg, High Bridge Park and many, many more!

Let our expert staff guide you through the entire process.

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NEED SOME HELP SELECTING THE RIGHT BLAST MEDIA FOR YOUR PROJECT?

ESCA Blast strives to help our clients understand all the options available to them when it comes to blasting.  We have a team of experts on staff ready to help you.  One of our experts has even written an article to help you select the right blast media for what your project is.

UNDERSTANDING ABRASIVE BLAST MEDIA

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