Brown Aluminium Oxide


Brown Aluminium Oxide

Brown aluminium oxide is a  high-grade, high-purity alumina manufactured from the controlled melting of calcined bauxite, silica, coke and iron.
Available in premium grades specifically approved for aerospace applications, conforming to specifications such as Rolls Royce CSS12, Airbus ABR9-0160 etc.

This is also referred to as Alumac.

In addition to the grades below, micro grades and specialist blends are available.


Abrasive Type



3.95 g/cm³

Bulk Density

1.7 g/cm³


9.0 Mohs





Dust Levels






BA12 ~1.765 mm

BA20 ~1.04 mm

BA36 ~0.525 mm

BA54 ~0.310 mm

BA80 ~0.1855 mm

BA120 ~0.109 mm

BA180 ~0.069 mm

BA220 ~0.058 mm


• Anti Skid / Road Maintenance
• Anti Slip Floors / Safety Flooring
• Anti Slip Resins and Paints
• Automotive
• Bonded and Coated Abrasives
• Castings and Forgings
• Glass & Ceramics: Decorative marking
• Glass & Ceramics: Frosting & line marking
• Glass & Ceramics: Paint & print removal without damage
• Glass & Ceramics: Satin finish
• Lapping and Polishing/Lapidary/Optical
• Metals: Aerospace approval
• Metals: Cleaning without dimensional change
• Metals: Flash removal
• Metals: Keying surfaces for rubber/plastic bonding
• Metals: Light deburring
• Metals: Peening
• Metals: Removal of hard deposits/investment
• Metals: Matt or textured finish
• Metals: Mould die and tool cleaning
• Metals: Preconditioning and cleaning
• Metals: Preparation for paint metal or plastic spraying
• Metals: Preparation for enamelling/electroplating/anodising
• Metals: Removal of paint/scale/rust
• Metals: Removal of solder/weld/flex
• Metals: Sheen finishing or anti-reflective treatment
• Nuclear and Power Generation
• Oil and Gas Industries
• Plastics & Composites: Cosmetic matt or texture finish
• Plastics & Composites: Deflashing & preparation of electronic components
• Plastics & Composites: Deflashing thermoset mouldings
• Plastics & Composites: Deflashing rubber components and die casting
• Plastics & Composites: Preparation for paint or metal sprayings
• Plastics & Composites: Removal of paint and coating
• Polishing
• Refractories and Furnace Linings
• Surface Finishing
• Surface Preparation
• Vapour blasting / Wet blasting
• Vehicles
• Vibratory Media Manufacture

Hodge Clemco also offer an abrasive recycling and disposal service

For more information on our range of products view our product catalogue.

See the full selection of our abrasive materials in our abrasives brochure.

Watch our product videos on our YouTube channel.