Blast Cabinets

[mongocanfly]

The glass beads are a very fine abrasive... if you want to remove rust better, then get sand..obviously the coarser grit the better..I run 80 and 120 in mine
At work, we use glass beads, we cut some teflon sheets to fit the sides to help it slide down better..moisture also creates problems..so we hang decadent bags under the screen

[Getter-Done]

For rust removal, I use Aluminum Oxide.
It's the Longest-lasting media for fast, effective rust removal.

Here is a list of other abrasives and their application.

Glass Bead/Works best on softer metals like aluminum, brass and die-cast.

Walnut Shells/Remove paint, carbon deposits from ferrous metal, clean internal parts.

Ground Glass Media Free 40/70 Mesh Non-hazardous silica substitute to use for light rust removal.

Silicon Carbide/Sharp edges for heavy rust removal, welding/brazing prep, glass etching.

Rust Remover Bicarb Soda w/ 10% 70 Grit Alum Oxide/Most aggressive soda for rust removal; 90% soda, 10% alum. oxide.

Now for the media issue not sliding back down, I found a kick drum pedal at a scrap yard one time it works great. You can leave you hands in the gloves and you don't have to knee the cabinet
I also have a small vibration motor on there.