Bead Blasting vs Media Blasting: Which One Should You Buy?
Bead blasting is one kind of media blasting, not a rival to it: glass beads against sharp aluminum oxide grit, and which finish each one leaves on metal.
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A rusty bracket headed for paint and a valve cover headed for a clean finish are different jobs, and they call for different media. Bead blasting vs media blasting is not a match between rivals: bead blasting is one kind of media blasting, the kind that uses glass beads, while media blasting is the wider family of abrasives, including the sharp aluminum oxide grit in this guide, which cuts and etches metal instead of smoothing it. Pick the media by the finish you need, not by the name on the bag.
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Below: the short answer, what each kind of media does to metal, the aluminum oxide gear in this guide, and which grit fits which job.
Bead blasting vs media blasting: the short answer
Bead blasting uses glass beads. Media blasting covers every abrasive blown through a cabinet or gun, and aluminum oxide is the one the four listings in this guide state. The listings draw the contrast themselves: the TITGGI listing states that aluminum oxide will not break down as fast as glass blasting media, and that it has a longer cycle life than most blast media. The INTERACTIVIA listing states that aluminum oxide is harder than most blasting medias, with sharp angular grit that cleans and etches. So the choice is between beads that wear out faster and a hard, sharp grit that keeps cutting.
| Media | Shape | What it does | Wear |
|---|---|---|---|
| Glass beads (bead blasting) | Round beads | Smooths and cleans the surface | Breaks down faster than aluminum oxide, per the TITGGI listing |
| Aluminum oxide (media blasting) | Sharp, angular grit | Cleans and etches, removes rust, paint and mill scale | Longer cycle life than most blast media, per the TITGGI listing |
Both kinds of media run in a blasting cabinet or through a blasting gun, and the INTERACTIVIA and HDURCIR listings state cabinet or gun use. The rest of this guide stays with what those listings state.
What bead blasting does
Bead blasting blows glass beads at the part. The beads are round, so they clean and smooth the surface rather than cutting into it, which suits parts where the finish matters more than fast material removal. The trade-off is wear: the TITGGI listing states that glass blasting media breaks down faster than aluminum oxide, so beads need replacing sooner. No glass bead product appears in the four listings for this guide, so the gear section below covers the aluminum oxide media the listings do state.
What media blasting with aluminum oxide does
Aluminum oxide is a hard mineral abrasive. The TITGGI and HDURCIR listings state a hardness of 9 on the Mohs scale, just below diamond. The TITGGI listing states that it cleans and etches on glass, granite, marble, ceramic and steel. The TITGGI title states rust and paint removal, mill scale removal, and metal surface preparation before painting, coating or refinishing. The HDURCIR listings add surface preparation of stainless steel, aluminum and wood, as well as etching glass.
The listings also state that aluminum oxide lasts. TITGGI and INTERACTIVIA both state that it lasts 10 times longer than silica, and INTERACTIVIA calls it highly reusable with sharp angular grit. TITGGI states its media has no free silica and is 100% recycled, and INTERACTIVIA states no detectable crystalline silica. TITGGI and HDURCIR state that the media can be used wet or dry.
The gear: aluminum oxide media in this guide
Four aluminum oxide listings, from 60 grit to 100 grit, and from 8 lb to 19 lb:
| Media | Grit | Weight | Pack |
|---|---|---|---|
| TITGGI Aluminum Oxide | 80 grit | 19 lb | White bucket |
| INTERACTIVIA Aluminum Oxide | 100 grit | 8 lb | Not stated |
| HDURCIR Aluminum Oxide | 100 grit | 12 lb | Sturdy plastic bucket |
| HDURCIR Aluminum Oxide | 60 grit | 14 lb | Sturdy plastic bucket |
TITGGI 80 grit, 19 lb. The largest pack here, in a white bucket the listing says is easy to carry, without worry about damage and leaking like a carton. It states rust and paint removal, mill scale removal, and surface preparation before painting, coating or refinishing. The listing states no free silica, 100% recycled media, and use wet or dry.
INTERACTIVIA 100 grit, 8 lb. The smallest pack here, and the only one that states a specific gravity of 3.9 and a bulk density of 115 to 125 lb per cubic foot. It states medium grit, sharp angular grit, high density, and that it is non-reactant, so it will not interfere with coatings during surface preparation. It states made in Canada, and no detectable crystalline silica.
HDURCIR 100 grit, 12 lb. Medium to fine grit in a sturdy plastic bucket for easy carrying and use. It states use wet or dry, and removal of mill scale, paint coating, and surface preparation of stainless steel, aluminum and wood, as well as etching glass. The listing states that buying large packaging is more cost-effective.
HDURCIR 60 grit, 14 lb. The coarsest grit here, in a sturdy plastic bucket. It states the same uses as the 12 lb HDURCIR listing: mill scale and paint coating removal, surface preparation of stainless steel, aluminum and wood, and etching glass, with use wet or dry.
Which grit for which job
Grit numbers run from 60 to 100 across these four listings, with 60 the coarsest and 100 the finest. The 60 grit HDURCIR is the coarsest here, and states mill scale and paint coating removal. The 80 grit TITGGI sits in the middle and states rust and paint removal plus mill scale removal. The 100 grit listings, INTERACTIVIA at 8 lb and HDURCIR at 12 lb, are medium grit for surface preparation and etching glass. HDURCIR calls its 100 grit medium to fine, while INTERACTIVIA calls its 100 grit aggressive. Match the grit to the coating you are removing and the finish the next step needs: a coarse grit leaves a rougher anchor for paint, a fine grit leaves a lighter one.
Weight matters for how much media you have. The 19 lb TITGGI bucket suits a run of parts in a cabinet, while the 8 lb INTERACTIVIA pack suits a small job or a first try with aluminum oxide. The HDURCIR listings state that buying large packaging is more cost-effective, which is worth weighing when the cabinet sees regular use.
How to run a cabinet with aluminum oxide
Load the media the cabinet manual calls for, and check the cabinet seals and the gun nozzle before the first pass. Aluminum oxide cuts fast, so keep the gun moving and hold a steady distance from the part, and check the finish often rather than blasting one spot. The listings state wet or dry use for the TITGGI and HDURCIR media, so follow the cabinet manual on which one your cabinet supports. Wear eye protection and a respirator rated for the dust the job makes, and keep the cabinet door closed while the gun is live. Empty and sieve the media when the cutting slows, and replace it when the grit rounds off.
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FAQ: garage tools
Is bead blasting the same as media blasting?
No. Media blasting is the wider term for blowing an abrasive through a cabinet or gun, and bead blasting is one kind of it, the kind that uses glass beads. Aluminum oxide, the media in this guide, is another kind, with sharp angular grit that cleans and etches.
Can aluminum oxide blast media be reused?
Yes, and the listings state it plainly. TITGGI states a longer cycle life than most blast media and that it lasts 10 times longer than silica, and INTERACTIVIA calls it long lasting, highly efficient and highly reusable. Replace it when the grit rounds off and the cutting slows.
What grit aluminum oxide should I use for rust removal?
Only the TITGGI listing states rust removal. The 80 grit TITGGI states rust and paint removal and mill scale removal, the 60 grit HDURCIR states mill scale and paint coating removal, and the 100 grit listings state surface preparation and etching glass. Pick the coarsest grit that leaves the finish the next step needs.
Can I use aluminum oxide blast media wet or dry?
The TITGGI and HDURCIR listings state that their media can be used wet or dry. The INTERACTIVIA listing does not state wet use, so follow the cabinet manual and the listing for the media you buy.
Does aluminum oxide blast media contain silica?
Two of the listings here state that it does not carry free silica: TITGGI states no free silica, and INTERACTIVIA states no detectable crystalline silica. That is the maker’s statement on the listing, not a finding from this guide.
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