We produce abrasive grains for Fused Alumina applications – in sufficient quantities for the full range of grit sizes.Great Lakes Minerals LLC (GLM), an American owned company, is a producer of refined/sized Fused Alumina and other alumina based industrial mineral products used as raw materials in the refractory and abrasive industries. GLM has the capability to crush, size, package and warehouse Fused Alumina Oxide and other industrial minerals.

Our state-of-the-art facility is centrally located in Wurtland, Kentucky, strategically positioned on the Ohio River and is one of the most efficient processors of Brown Fused Alumina in the industry. All production processes are controlled via a state-of-the-art PLC system and every pallet of finished product is barcoded upon packaging which provides permanent QC traceability. The GLM facility also uses some of the most advanced dust collection technology available, resulting in much greater visibility within blast cabinets or blast rooms.  Our difference in quality is immediately apparent to clients when compared to competitor products. Upon shipment, product certifications are automatically emailed to customers. GLM’s core management team are some of the most qualified and experienced professionals in the industry, most of which have been in place since inception over 20 years ago.

We produce abrasive grains specifically for Fused Alumina applications – in sufficient quantities for the full range of grit sizes (6 – 240). Our fused aluminum oxide abrasive grains are made for maximum toughness and hardness to deliver superior performance in your Fused Alumina applications.

There are multiple types of fused alumina such as Brown Fused Alumina, White Fused Alumina, and Pink Fused Alumina, each used for different applications and end results. The two most commonly used are brown fused and white fused. As the names imply, Brown Fused Alumina is dark brown while White Fused Alumina is white. They have an oxide content of 95% and 99%, respectively. Brown Fused Alumina is created from bauxite, while White Fused is created from calcined alumina powder. They are both extremely hard and have high refractory temperatures. White Fused Alumina is however more fragile than Brown Fused Alumina. Brown Fused Alumina is one of the best abrasives available in terms of cleaning potential, low dusting properties and reusability. It is an extremely aggressive media and, due to its’ composition of 95% pure aluminum oxide, it will not promote rust or ferric contamination on the surfaces it is being applied to. It is commonly used in blast cabinets, blast rooms and any production environment where spent abrasive can be reclaimed.  The advantage of Brown Fused Alumina is it can be reused up to 7 times for most applications, unlike other blasting media options, such as garnet or coal slag which generally have a one or two-time use.

Customers of Great Lakes Minerals employ Fused Alumina for a variety of purposes, including:

  • Rust removal
  • Surface preparation for automotive components
  • Precision aviation blasting
  • Surface preparation for thermal spray coatings
  • Cleaning and preparing aerospace components such as turbine blades
  • Cleaning of investment casting surfaces
  • Steam turbine scale removal
  • Mill scale removal
  • Heat treat scale removal
  • Glass etching or frosting
  • Precision finishing of medical devices and precision parts
  • Monument lettering

We produce Brown Fused Alumina abrasive grains specifically for blasting applications – in sufficient quantities for the full range of grit sizes (6 – 240). Our brown fused alumina abrasive grains are made for maximum toughness and hardness to deliver superior performance in your abrasive applications and comply with all major industry standards including American National Standards Institute (ANSI) B74.12 Table 3, MIL A21380 B, CID-AA-59316, CSS12 and General Electric Aircraft Engine Group D50tF5-S8 Class D.  GLM is an approved Pratt & Whitney supplier.

Contact us at 606.833.8383 or visit us on the web at www.greatlakesminerals.com. We look forward to working with you for your Brown Fused Alumina and other abrasive related needs.