View Full Version : Where do you guys get your aluminum oxide for abrasive blasting?


Major Ramifications
07-30-2010, 01:07 PM
I just bought some this morning from Grainger. $80 for a small 50 lb. box that their website claimed was a 5 gallon bucket. It's so small, I don't know if it will be enough to let the cabinet blast continously without me banging on it to knock more down into the hopper. At least it is made in USA and I was able to choose the exact grit that I needed.
The last time I got some, about 6 years ago, I got it from a local abrasive place and I don't remember it being very expensive. Fortunately, I no longer work near the industrial area where I got that stuff, so that is out for me.
I checked Harbor Freight and Tractor Supply, but their stuff was either the wrong grit or it had no grit listed. Also, they did not state C.O.O.

dlewis
07-30-2010, 01:35 PM
Try a paint/autobody supplier.

Fubar
07-30-2010, 01:44 PM
Eastwood

http://www.eastwood.com/aluminum-oxide-blast-media-90-grit.html

I buy all my blast stuff there...

Bolster
07-30-2010, 02:25 PM
HF carries blasting media? Do they carry glass beads?

Charles (in GA)
07-30-2010, 02:34 PM
MSC is more reasonably priced. They have several brands so look at all possibilities before buying.

Oxide is very aggressive, I use glass beads. You can get a combination of beads and oxide thats not so aggressive.

Charles

Falcon67
07-30-2010, 02:36 PM
The HF here has abrasives and beads.

ZRX61
07-30-2010, 02:39 PM
HF carries blasting media? Do they carry glass beads?

Yup. I have some.

Stephenw
07-30-2010, 03:47 PM
HF...

http://www.harborfreight.com/44-lbs-black-aluminum-oxide-abrasive-70-grit-99945.html

http://www.harborfreight.com/media/catalog/product/cache/1/image/9df78eab33525d08d6e5fb8d27136e95/i/m/image_4355.jpg

Major Ramifications
07-30-2010, 04:09 PM
MSC is more reasonably priced. They have several brands so look at all possibilities before buying.

Oxide is very aggressive, I use glass beads. You can get a combination of beads and oxide thats not so aggressive.

Charles

Charles,
I checked MSC. Their price is almost exactly the same as Grainger and they never have anything I need in stock.
I am blasting a set of headers prior to applying a ceramic coating. The manufacturer says, "DO NOT USE GLASS BEADS" (I don't know why) but to use clean 120 grit aluminum oxide.
I use aluminum oxide for most iron and steel parts, and glass beads for aluminum jobs.

SSAAHemiFan
07-30-2010, 04:47 PM
very common to use alum oxide instead of glass beads with coatings.

The alum oxide provides more tooth - the glass bead tends to burnish or peen over the ridge's in the surface

BTG
07-30-2010, 06:11 PM
Try contacting your local stripper/blaster outfits. Many of the larger outfits sell alum oxide and other media. We have a powder coating/ceramic coating business and buy our blasting media locally from a large stripper as they buy it in large quantities (like the truckload)

wbclassics
07-30-2010, 07:10 PM
McMaster, I've bought 120grit AlOx from them for exactly the same purpose as you.

jeepnut24
07-30-2010, 07:27 PM
HF, same as posted above.

Johnny chaos
07-30-2010, 10:15 PM
I always buy it at TSC, it's around $7 for a 50lb bag. I think Harbor freight is kind of expensive for their media if I remember correctly? I do alot of powder coating and have always used alum oxide with no problems. I keep it in the large rubbermaid bins and as it breaks down I can mix new and old to get the abrasiveness I'm looking for.

Charles (in GA)
07-30-2010, 11:22 PM
http://www1.mscdirect.com/CGI/NNSRIT?PMPXNO=2697097&PMT4NO=90793645

1 - 4: $76.43 ea


http://www.grainger.com/Grainger/wwg/catalogPDF.shtml?CatPage=3306

Aluminum Oxide 120 6YY40 76.45

Two cents difference! My past experience was that MSC had a line of no name or off name abrasives that were lots cheaper. I bought glass beads from them, in stock, fairly cheap, about three years ago, looks like they dropped alot of the cheaper stuff.

Charles

fxt
07-31-2010, 08:21 AM
HF...

http://www.harborfreight.com/44-lbs-black-aluminum-oxide-abrasive-70-grit-99945.html

http://www.harborfreight.com/media/catalog/product/cache/1/image/9df78eab33525d08d6e5fb8d27136e95/i/m/image_4355.jpg


does this work well for rust removal.

how does it compare to black beauty.

Stephenw
07-31-2010, 09:21 AM
does this work well for rust removal.

how does it compare to black beauty.

I've never used black beauty, so I can't give a comparison.

Aluminum oxide is very aggressive and works great for rust on steel. It does a great job on mill scale which is much more difficult to remove than rust.

fxt
07-31-2010, 10:08 AM
I've never used black beauty, so I can't give a comparison.

Aluminum oxide is very aggressive and works great for rust on steel. It does a great job on mill scale which is much more difficult to remove than rust.

so itll work gone on removing clear coat and paint off of wheels with no issues?

stripping them down to bare metal

Eastwood Company
08-12-2010, 11:14 AM
so itll work gone on removing clear coat and paint off of wheels with no issues?

stripping them down to bare metal


Aluminum Oxide is perfect for that, We actually keep our blast cabinet in our R&D shop filled with Aluminum Oxide. I tend to hold the nozzle further away from the part if I am afraid of it etching the part too much.

We are actually working on a video right now showing the blasting process, and then powder coating the part as I type this! Hope that helps!

-Matt/EW

Drdaves49
08-12-2010, 11:42 AM
HF also has walnut shells.

Major Ramifications
08-12-2010, 01:01 PM
HF also has walnut shells.

I think those are water chestnut shells.:lol_hitti