Aluminium Oxide "Brown"
Extremely hard, sharp, and durable abrasive
Angular shape and fairly high bulk density will produce a matte surface finish
Abrasive is generally reusable many times because of its hardness and
Anchor pattern creation prior to coating or bonding
Rust, scale, or other tough contaminant removal
Application must tolerate some metal removal
Used for grinding and lapping as well as abrasive blasting