Abrasive Blasting


GMA works with Naval and Military Corrosion Engineering teams to meet stringent Military Specifications and Standards. GMA Garnet™ is SSPC AB1, MilSpec and ISO Standards Approved. SSPC AB1 (including Appendix B), MIL-22262-B (QPL), ISO-11126-10 approved.

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Get a cleaner surface faster, with minimized OSH risks

Approved by paint and coating manufacturers around the world, GMA provides a range of high-performance garnet blasting abrasives to the Naval Shipbuilding and Military Transport & Equipment industries.


High productivity

Achieve your specified surface profile faster than alternate abrasives.


Low consumption

Complete the job with far less abrasive, reducing costs in abrasive purchase, transport, and disposal.

High Peak Density

High peak density

Generate higher peak density over alternate abrasives for unmatched coating adhesion and integrity.

Surface quality

Low embedment

60% of the average slag-blasted surface is embedded with residual abrasive. Garnet results in minimal embedment.

Hazard mask

Low dust

GMA Garnet™ offers the closest thing to dustless blasting, drastically improving operator visibility and reducing site contamination.


Low safety risk

Garnet is an inert mineral with little to no heavy metals creating worker risks or environmental hazards.

  • World class 12 point QA/QC process with samples taken every two hours to ensure GMA’s processed garnet is of the highest standards.
  • Very low dust emissions, improving visibility and productivity particularly in confined spaces
  • High blasting and cleaning efficiency, leading to lower abrasive consumption, and lower clean-up and disposal costs
  • Exceptional surface cleanliness with minimal abrasive embedment for better corrosion resistance and substrate integrity
  • Inert, sustainable natural mineral with little-to-no recordable heavy metals and worker hazard risks.
  • Waste management and garnet recycling: GMA Garnet™ can provide a high level of reusability through recycling onsite

Safely create clean, consistent surfaces

Find out how GMA can produce the range of surface profiles that your protective coatings require — safely, efficiently, and without disrupting your facility.