Depending on whether you need a small jar for polishing or bulk quantities for sandblasting, you can find aluminum oxide at the following locations:
: Carries high-quality blasting abrasive, such as the ALC 25 lbs 60-grit , though some items are online-exclusive and cannot be bought in-store. where to buy aluminum oxide
: Best for affordable, bulk blasting media. They typically stock 25 lb and 50 lb buckets of 70-grit black aluminum oxide. Depending on whether you need a small jar