Opta Waive
Opta Minerals Blast Cleaning Abrasives

Garnet for Blast Cleaning

Opta Minerals is one of North America’s largest miners, importers and processors of Garnet Abrasives.

Garnet, derived from mined Almandite and Andradite mineral deposits, is a semi-precious stone. Once extracted, it is processed and then screened to the desired grade.

The combination of the high density and physical properties make Garnet nature’s most highly efficient, effective and safe abrasive for both wet and dry blasting applications.

Garnet for Blast Cleaning

Advantages of Garnet for Blast Cleaning

  • Wide range of grades and composition available for different jobs and profiles
  • Superior surface profile – garnet grains create a uniform profile virtually free of embedment, providing an excellent surface for coating adhesion
  • Cost–effective - highly effective, low consumption
  • Non-toxic – inert and natural, crystalline silica levels are less than 1%
  • Recyclable up to 5 times
  • Low dust levels – improved operator visibility
  • Easy cleanup
  • Non-reactant – will not interfere with your coatings
  • Non-porous – will not draw moisture

Available Sizes and Grades:

ALMANDITE ANDRADITE
HARD ROCK ALLUVIAL ROCK
Galaxy Garnet Galaxy JS Garnet Indian Beach Garnet IG Garnet
#8 Mesh #36 (20-40M) #12-40 Mesh #8 Mesh
#8-12 Mesh #30-60 Mesh #20-40 Mesh #8-12 Mesh
#16 Mesh #50 Mesh #20-60 Mesh #12 Mesh
#36 Mesh #80 Mesh #30-60 Mesh #20-40 Mesh
#30-40 Mesh   #80 Mesh #36 Mesh
#50 Mesh   #120 Mesh #30-40 Mesh
#60 Mesh     #50 Mesh
#80 Mesh     #60 Mesh
#120 Mesh     #80 Mesh

Technical Specifications

  ALMANDITE ANDRADITE
  HARD ROCK ALLUVIAL ROCK
Galaxy Garnet Galaxy JS Garnet Indian Beach Garnet IG Garnet
Chemical Composition in %
SiO2 (Silicon Dioxide - Total) 37.2 36.6 36.0 36.0
Fe203 (Iron Oxide) 33.2 29.6 32.0 31.1
Al203 (Aluminum Oxide) 20.6 14.3 23.0 2.9
Mg0 (Magnesium Oxide) 6.1 5.0 6.0 1.0
Ca0 (Calcium Oxide) 2.0 10.4 1.0 26.0
Mn0 (Manganese Oxide) 0.6   1.0 1.0
Ti02 (TitaniumDioxide) 0.3 2.9 1.0 1.0
Na20 (Sodium Oxide)   1.2    
Zr02 (Zirconium Oxide)       1.0
  100.0 100.0 100.0 100.0

Characteristics

  ALMANDITE ANDRADITE
  HARD ROCK ALLUVIAL ROCK
Galaxy Garnet Galaxy JS Garnet Indian Beach Garnet IG Garnet
Hardness: 7.95-8.0 Moh 7.5-8.0 Moh 7.5 Moh 7 Moh
Density: 150 lbs/ft3 145 lbs/ft3 145 lbs/ft3 135 lbs/ft3
Specific Gravity: 4.0 - 4.1 g/cm3 3.9-4.1 g/c3 4.1 g/cm3 4.0 g/cm3
Colour: Brown/Red Brown/Red Pink Grey/Brown

Packaging:

ALMANDITE ANDRADITE
HARD ROCK ALLUVIAL ROCK
Galaxy Garnet Galaxy JS Garnet Indian Beach Garnet IG Garnet
2000 lb SS 2200 lb SS 2200 lb SS 50 lb bags
50 lb bags 50 lb bags 50 lb bags 2000 lb SS
      4000 lb SS

Order today