Media Blasting materials
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Senior User
Joined: Oct 2001
Posts: 276
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From: Spokane USA
Media Blasting materials
I have several projects that will need "sandblasting" to fully clean and prepare for further work. One company in Canada sells a material they call "K2" which turns out to be potasium sulphate I understand. Are there any of you out there that have had work done using this product, and are there sources to buy this material more directly. Any sandblasting company is going to have to mark it up a batch just to pay for inventoring it and so on. Also the "K2" stuff is supposed to be the least problematic for cleanup after the blasting is done. Is that true? Any other info on this product would be appreciated.
Fleet Owner
Joined: Aug 2001
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From: Drummonds, TN USA
Media Blasting materials
That stuff sounds like the fine material used in electronic chassis rehabilitation. It is not the sort of an abrasive I would use on steel at all, more like for cleaning circuit board connectors or mild aluminum chassis areas (in electronic assemblies).
Normally glass beads are the preference of choice, and they are readily available.
Both potassium and sulphur are water soluble, but they are also potentially CORROSIVE. Sulphur readily forms sulphuric acid under some conditions and Potassium can combine into a salt. These are not desirable materials at all in large scale operations, because cleaning would have to be very thorough in order to prevent any left over material from hiding out in crevices to potentially become much more damaging than the original rust.
Glass beads on the other hand are inert - glass is a form of silicon.
Normally glass beads are the preference of choice, and they are readily available.
Both potassium and sulphur are water soluble, but they are also potentially CORROSIVE. Sulphur readily forms sulphuric acid under some conditions and Potassium can combine into a salt. These are not desirable materials at all in large scale operations, because cleaning would have to be very thorough in order to prevent any left over material from hiding out in crevices to potentially become much more damaging than the original rust.
Glass beads on the other hand are inert - glass is a form of silicon.
Senior User
Joined: Dec 2001
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From: Michigan
Media Blasting materials
If you want to remove paint i would use glass beads. If its rust you should try aluminum oxide. I use this in my cabinet for small parts it works great. Cost about $32.00 bucks in the Detroit are (50 pound bag). For my larger projects i use silica sand its cheap.
Watch when your blasting those body parts. Its real easy to warp a body panel..
I had my 68 Vette stripped last year and they used glass bead ($800.00).
Watch when your blasting those body parts. Its real easy to warp a body panel..
I had my 68 Vette stripped last year and they used glass bead ($800.00).
Fleet Owner
Joined: Aug 2001
Posts: 29,941
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From: Drummonds, TN USA
Media Blasting materials
One further note: BEWARE OF BEACH SAND!
Unless it's from an inland lake, sand from the ocean front is loaded with salt - an underbody/frame's worst enemy. In theory you can leach the salt out of it, but why even bother?
It's cheap enough to get the right stuff...
Unless it's from an inland lake, sand from the ocean front is loaded with salt - an underbody/frame's worst enemy. In theory you can leach the salt out of it, but why even bother?
It's cheap enough to get the right stuff...
Postmaster
Joined: Apr 2001
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Media Blasting materials
Potassium sulfate is a chemically unstable compound that deteriorates readily on exposure to oxygen, moisture or carbon dioxide. Unless they have some method of stabilizing this compound, which would add cost, there are sure a lot of cheaper alternatives. This compound is also known as Sulfurated Potash. When exposed to air it produces a distinctive odor of hydrogen sulfide, that lovely rotten-egg smell.
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Posting Legend
Joined: Sep 2001
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Media Blasting materials
Has anybody heard of that plastic bead material? It is supposed to be safe on fiberglass and won't warp sheet metal.
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Media Blasting materials
I mentioned it on a another thread in this forum.
It has become the normal here, for Best quality/Low Chance of damage material for blasting.
Dennis https://www.ford-trucks.com/user_gallery/sizeimage.php?&photoid=1733&.jpg
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It has become the normal here, for Best quality/Low Chance of damage material for blasting.
Dennis https://www.ford-trucks.com/user_gallery/sizeimage.php?&photoid=1733&.jpg
[i][font color=red]Calgary,Alberta,Canada[/font][i]
[font color=blue]Please Don't Ask Me Any Tough Questions,
"I'm Saving My Memory For When I Develop Alzheimer's" [font/]
78 F-150 429CJ,Silver, Explorer Pkg.
641/2-Mustang 260,Pre-World's Fair Car.
64-Fairlane500 S/C waiting for a 390-4spd.
68-Mustang 289-Sunlit Gold 80,892Mi
78-Buick LeSabre 403 4V
84 Volvo DL Wagon
Posting Guru
Joined: Dec 1999
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From: Benton County, MN
Media Blasting materials
What do the plastic beads look like? The only other stuff I have used besides silly sand is this black blasting crystal stuff. I don't know what it is really made of though. Another thing that might help is having a decent sandblaster. Are pressure blasters still $400. :-staun
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Joined: Jan 2008
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Media Blasting materials
Here's the lowdown.
http://www.surfaceblasting.com/plastic.html
Dennis https://www.ford-trucks.com/user_gallery/sizeimage.php?&photoid=1733&.jpg
[i][font color=red]Calgary,Alberta,Canada[/font][i]
[font color=blue]Please Don't Ask Me Any Tough Questions,
"I'm Saving My Memory For When I Develop Alzheimer's" [font/]
78 F-150 429CJ,Silver, Explorer Pkg.
641/2-Mustang 260,Pre-World's Fair Car.
64-Fairlane500 S/C waiting for a 390-4spd.
68-Mustang 289-Sunlit Gold 80,892Mi
78-Buick LeSabre 403 4V
84 Volvo DL Wagon
http://www.surfaceblasting.com/plastic.html
Dennis https://www.ford-trucks.com/user_gallery/sizeimage.php?&photoid=1733&.jpg
[i][font color=red]Calgary,Alberta,Canada[/font][i]
[font color=blue]Please Don't Ask Me Any Tough Questions,
"I'm Saving My Memory For When I Develop Alzheimer's" [font/]
78 F-150 429CJ,Silver, Explorer Pkg.
641/2-Mustang 260,Pre-World's Fair Car.
64-Fairlane500 S/C waiting for a 390-4spd.
68-Mustang 289-Sunlit Gold 80,892Mi
78-Buick LeSabre 403 4V
84 Volvo DL Wagon
Posting Legend
Joined: Sep 2001
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Media Blasting materials
Thanks for the Link!
Pressure blasters (smaller homeowner varieties) can be found at Harbor Freight Tools and Northern Hydraulics. I have a 40 pound pressurized unit from Harbor Freight #34202-1VGA that I bought for $75, they are $80 now. It is a very, well made unit and should still be around for my grandchildren, I am quite happy with it.
http://www.harborfreight.com/
http://www.northern-online.com/
over!
Drive 'em forever!
Pressure blasters (smaller homeowner varieties) can be found at Harbor Freight Tools and Northern Hydraulics. I have a 40 pound pressurized unit from Harbor Freight #34202-1VGA that I bought for $75, they are $80 now. It is a very, well made unit and should still be around for my grandchildren, I am quite happy with it.
http://www.harborfreight.com/
http://www.northern-online.com/
over!
Drive 'em forever!
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