Recycled Products

R-Blast Brown Alox

R-Blast is a Recycled Brown Alox (RBFA) that has been reclaimed from pressure blasting operations. This “USED” material NO LONGER meets the requirements because of size or contamination. This spent loose grain (which contains no bonded or coated materials) goes through our recycling and cleaning process to yield a product that is comparable in characteristic and performance to Virgin Aluminum Oxide.

R-Blast Processing

Large, non-abrasive particles are removed through a scalping process. The material is air washed and introduced into a rotary kiln furnace. Next, the material is exposed to an open flame that cleans the surface of the particles removing all residual contaminants. Material then passes through a rare-earth magnetic separator prior to screening. A second rare-earth magnetic separator is utilized for all material finer than 90 mesh. All screened materials meet industry specifications for size, characteristics, and chemistry.

The following testing standards are used to determine product characteristics:

R-Blast Testing Standards

  • Size Specifications: ANSI B74.12-2001
  • Bulk Density: ANSI B74.4-1992 R-1997
  • Magnetic Content: ANSI B74.14-1992-R-2000

R-Blast Product Characteristics

  • Crystal Form: Alpha Aluminum
  • Hardness: Knoop 2000; MOHS 9.0
  • Fusion Point: 2020º Celsius
  • True Specific Gravity: 3.96 g/cm3

Chemical Analysis:

Chemical Al2O3 TiO3 SiO2 Fe2O3 CaO MgO
Percent 94.50 3.20 1.30 0.20 0.30 0.40
Min/Max min max max max max max

Uses for R-Blast Brown Alox

  • Abrasive Blasting
  • Grinding
  • Lapping
  • Deburring
  • Tumbling
  • Refractories
  • Buffing Compounds
  • Etching
  • Non-Slip Surfaces
  • Fluidized Beds
  • Plasma Sprays

Sizes Available

70, 80, 90, 100, 120, 150, 180, 220*

*At times, certain sizes of R-Blast may not be readily available due to the lack of recyclable material being provided by end users. Under these conditions, it may be necessary to supplement R-Blast orders with V-Blast.


40 count/50-lb. bags
400-lb. fibre kegs/
1,600 lbs. per pallet
2,000-lb. bulk bags

GMA Services
Abrasive Recycling
Abrasive recycling and spent media purchase program.
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Helpful Technical Information
For all of our abrasive products
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Environmental improvement is bestowed in the foundation and culture of GMA Industries.
Through our recycling program, we are committed to assisting abrasive business users with their recycling needs to achieve ISO 14001 status.

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