Coal Slag Abrasives

Coal Slag Blast Media

Coal Slag Abrasives

AGSCO sells coal slag under several product labels including Black Beauty® and Black Diamond®. Coal slag has become more in demand due to its cleaning ability, low free silica, and wide array of mesh sizes. The granules are angular in shape to enhance the cutting ability, making them suitable for a wide variety of uses. All grades of coal slag are washed and have a dust suppressant added to them.

What is Coal Slag? 

Coal slag is an abrasive blasting media that is created as a recycled byproduct of coal combustion in power plants. The slag forms unique angular shapes making it a perfect material for a variety of applications. Due to its physical properties, it is seen as an alternative to silica sand.

What is coal slag used for?

Coal slag is a versatile abrasive that can be utilized in many different applications due to its wide array of mesh sizes. 

#40/80 Mesh Applications:

  • Light Rust
  • Light Coatings
  • Produces Slight Profile

#30/60 Mesh Applications:

  • Light Rust
  • Light Mill Scale
  • Light Coatings
  • Used for a White Blast
  • Produces Slight Profile

#20/40 Mesh Applications:

  • Rust
  • Mill Scale
  • Enamel
  • Acrylics
  • Exposed Aggregates
  • White to Near White Blast
  • Produces Moderate Profile

#12/40 Mesh Applications:

  • Heavy Coatings
  • Epoxy
  • Heavy Rust
  • Heavy Mill Scale
  • Coal Tar, Vinyl, Etc.
  • Rubber
  • Produces Heavy Profile


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Mesh Grit#12/30 Mesh - #40/80 Mesh
Grain ShapeAngular
Mohs Hardness7
Typical ApplicationsAbrasive Blasting
Metal RemovalMedium to Heavy
Standard Packaging50 lb. Bags, 80 lb. Bags, Super Sacks, Bulk Pneumatic