GMA ExtremeBlast GX3 Garnet

SKU: GX34400

GMA ExtremeBlast is our coarsest grade for the toughest jobs.



ExtremeBlast is GMA Garnet’s range of engineered abrasive blasting media. This abrasive is a blend of alluvial and rock garnets. GX3 is one of the coarser grades, ideal for removing the thickest coatings. Specifically, coatings of 30+ mils thickness. It also has the ability to remove flexible or rubberised coatings. It has this ability to do this is because of the sharpness of the rock garnet.

GMA Garnet is available from BlastOne throughout the USA. BlastOne’s stock-holdings includes multiple different grades to suit every blasting challenge. GMA’s ISO Quality Management System ensures consistency, both in size and cleanliness.


  • High surface profile of 3.5 – 4.5 mil (90 – 115 µm) or greater with exceptionally clean surface, enabling good bonding of specialist coatings
  • Blasting rates: Up to 280 ft²/hr (26 m²/hr)
  • Consumption rate: 2.5 – 3.5 lb/ft² (12.20 – 17.09 kg/m²)
  • Dust factor:  Low/Medium
  • Recyclability:  4/10
  • Mesh sizes: 16, 36
  • Packaging: 4400lb bulk bag

Additional information

Skid Size

4400lb skid