Grit blasting is the process by which an abrasive media is accelerated through a blasting nozzle by use of compressed air.Great Lakes Minerals LLC (GLM), an American owned company, is a producer of refined/sized Brown Fused Alumina, also known as Brown Fused Aluminum Oxide, and other alumina based industrial mineral products used as raw materials for grit blasting in the abrasive industries. GLM has the capability to crush, size, package and warehouse Brown Fused Aluminum Oxide and other grit blasting industrial minerals.

Grit blasting is the process by which an abrasive media is accelerated through a blasting nozzle by means of compressed air. Blasting can be done on smaller parts within blast cabinets, or applied to larger components, such as airplane parts, within blast rooms. The two basic types of abrasives are cutting and non-cutting abrasive. The most used cutting abrasive type is aluminum oxide due to its great recycling rates and its ability to open surfaces and allow for the best possible adhesion of coatings after the surface has been prepared. Choosing the correct mesh size to use is important in order to obtain the desired surface results.

Aluminum oxide has multiple different types, 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, however white fused alumina is more fragile than brown. Grit blasting abrasives with favorable recycling qualities, such as Brown Fused Aluminum Oxide, are recommended to be applied within blast rooms or blast cabinets as opposed to the use of portable blasting equipment, as the latter doesn’t allow for recycling.

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 grit blasting abrasives in the industry, specializing in brown fused aluminum oxide. All production processes are controlled via a state-of-the-art PLC system and every pallet of finished product is bar coded 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 grit blasting 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 grit blasting applications.

Brown Fused Alumina is one of the best grit blasting 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 for grit blasting 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 Brown Fused Alumina for a variety of grit blasting related 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 grit blasting applications – in sufficient quantities for the full range of grit sizes (6 – 240). Our brown fused aluminum oxide abrasive grains are made for maximum toughness and hardness to deliver superior grit blasting 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 grit blasting and other abrasive related needs.