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Re: Sand for Sandblasting?
[Re: Challenger 1]
#1391562
02/21/13 08:53 PM
02/21/13 08:53 PM
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Anonymous
Unregistered
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Anonymous
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Re: Sand for Sandblasting?
[Re: HyperPerformance]
#1391564
02/21/13 10:10 PM
02/21/13 10:10 PM
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Joined: Jul 2008
Posts: 26
Annapolis, Md
71TrakPak
member
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member
Joined: Jul 2008
Posts: 26
Annapolis, Md
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Consider crushed/recycled glass. For costs, not other media comes close (cheap!) as well as its safer than sand (silica's) and slag (carcinogens). It requires the same equip as sand blasting ( unlike soda). Here is a link http://www.newageblastmedia.com/Good luck
1971 Charger R/T 4spd
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Re: Sand for Sandblasting?
[Re: CYACOP]
#1391565
02/21/13 10:35 PM
02/21/13 10:35 PM
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Anonymous
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Anonymous
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Quote:
I would be careful using a fan that does not have an explosion proof motor. Often the fan wheel is belt driven with the motor out of the air stream. Any dust in the right concentration can be explosive. Just a thought.
The fan in my pic does have an explosion proof motor. 
Definitely a good point to add though as some people simply do not not think of the small details.
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Re: Sand for Sandblasting?
[Re: ]
#1391566
02/23/13 06:58 PM
02/23/13 06:58 PM
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Joined: Jan 2003
Posts: 18,632
jersey shore
flypaper
I hate Texas
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I hate Texas
Joined: Jan 2003
Posts: 18,632
jersey shore
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i used this stuff.. coal slag  it is agressive enough to kill deep rust and you can reuse it but it loses its cut the 2nd time thru. oxide or crushed glass takes too long to do the same job on deep rust. you will use up more material to do the same job  plastic media is probably better but its more costly to buy. http://www.tractorsupply.com/tools/sandb...-50-lb--3905403
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Re: Sand for Sandblasting?
[Re: flypaper]
#1391567
02/23/13 07:18 PM
02/23/13 07:18 PM
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Joined: Feb 2003
Posts: 18,582
Rust Belt, SW PA
Silver70
I Live Here
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I Live Here
Joined: Feb 2003
Posts: 18,582
Rust Belt, SW PA
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I use fine white sand, it does have silica in it, but I only blast outside and have been using it for 20 plus years. Although I used to get 100lbs bags for 2 bucks, it's now 5.50 for 50lbs. I don't sandblast entire cars anymore or exterior panels unless they are covered in rust. I use polycarbide stripping wheels where ever I can.
68 Road Runner, 69 Belvedere, 71 Challenger Vert
340 barracuda, 01 Ram CTD, 95 Ram, 04 Ram, 85 Daytona turbo Z
66 GTO, 06 Magnum RT AWD. 07 Ram CTD, 07 Ram
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Re: Sand for Sandblasting?
[Re: moparmojo]
#1391571
02/23/13 10:56 PM
02/23/13 10:56 PM
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Joined: Feb 2005
Posts: 28,312
Cincinnati, Ohio
Challenger 1
Too Many Posts
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Too Many Posts
Joined: Feb 2005
Posts: 28,312
Cincinnati, Ohio
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Quote:
Can you tell us about the equipment you used, compressor, blaster, any tricks with hosing ect. I have a harbor freight one and it I
Either works really good or not at all. I have a 2 stage compressor but I wouldnt say it is the biggest out there. Your car looks really nice and white. Looks good.
I've done quite of bit of blasting over a 30 year span.
The HF blaster is too small(capacity wise) and has a ridiculous filler neck, it will cause you more aggravation than pleasure imo.
A small decent pressure pot blaster starts at $399., just like the one superfreak has in his picture above, I have one too only it's about 25 years old. It'll allow you to fill it 10X easier than that silly funnel thing HF gives you, because you will spend plenty of time filling your blaster, it goes fast.
Then water is your biggest enemy and a 5 HP 2 stage compressor is not big enough for efficient blasting. Small 5HP 2stage compressors make a ton of water and screws your blaster up.
Rent a minumun 100CFM diesel tow behind compressor from the tool rental for the air supply.
Many different medias available, get one made for blasting that is dehydrated in plastic lined bags. Pool and play is not dehydrated and is not made for blasting because it has rounded edges not splintered like blasting media is.
I have long, long hose coming from my diesel compressor to give the air time to cool before it get's to my pressure pot and large water separator that I keep wide open while I'm blasting so the water is continuously draining because there will be a lot of it.
I buy media from 2 places, one a building supply that sells bricks. The sell it to tuck point masonry products. I buy it by the pallet load, it's cheapest that way.
Then I buy urea plastic from a deburring company here in town, comes in a 200lb fiber drum and is enough to do the outside body of a car. Last time I bought it, it cost $440. bucks for 200lbs.
The regulator at the end of your long supply hose must has larger orifice inside, way bigger than the one you use for your shop air and a regulator is important to keep your work consistent.
I could go on and on and on.
You don't want to spend hours blasting the hell out of your car over and over because you are always waiting on air. One time with huge volume is way better for the metal than point blank for hours with a little compressor.
Experience will dictate what to blast and what not to blast. Like undercoating, you not want to try to blast that off, imo.
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Re: Sand for Sandblasting?
[Re: Challenger 1]
#1391572
02/23/13 11:22 PM
02/23/13 11:22 PM
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Joined: Feb 2005
Posts: 28,312
Cincinnati, Ohio
Challenger 1
Too Many Posts
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Too Many Posts
Joined: Feb 2005
Posts: 28,312
Cincinnati, Ohio
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I have ton's pictures of my blasting work, this is the most recent for me. Easy, heavy steel truck bumpers, used 20/40 coal slage. BTW I have blasted silica sand that was delivered to the jobsite by the dump truck load in bulk. We would jack truck scales out of the scale pit's with 20 ton bottle jacks and wood blocks. Then sand blast the entire I beam structure underneath and then coat it in heavy lead paint back around 1980. I did at least 6 10X60' scales in my time. I blasted this most recently. Easy work, heavy steel truck bumpers.  I rented this so many times that I bought it.  I blasted every inch of this truck tank and put it in etch and epoxy primer all in one day.  [image]http://[/image] 
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Re: Sand for Sandblasting?
[Re: Challenger 1]
#1391573
02/24/13 01:03 PM
02/24/13 01:03 PM
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Joined: Jan 2003
Posts: 5,948
British Columbia
chrisf
master
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master
Joined: Jan 2003
Posts: 5,948
British Columbia
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here are some of my jobs, When i started my business i never inteneded to do industrial blasting so i honed my skills on specialty stuff like cars, boats, houses ect. i originally started out as just a soda blaster but soda has its limitations, so i spend a couple years trying every media i could get my hands on. I am to the point now where i mainly use. soda, walnut, 3 grades of glass, (50, 100 and 200 grit) aluminum oxide and garnet. different medias for different jobs. my main media now is glass. i have the confidence and experience to blast almost everything with glass but there are some exceptions. so i will use soda or walnuts if i feel they are too delicate or if the customer wants a finish thats smooth. the vette in the pic is 200 grit glass, boat was soda, chevy panel was walnut/100 grit glass, caddy was 100 grit, chevelle was soda blasted, cuda walnut like challenger says a good compressor is a must. buy good media, it will pay off in the long run. i would go with a 100 grit glass for a new guy as its a little more forgiving than the coarser stuff, stay away from sand. sand belongs at the beach, not your car. maybe floor suspension stuff but no panels. so to answer you question with my long winded response. 100 grit glass, cheap and user friendly         
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Re: Sand for Sandblasting?
[Re: moparmojo]
#1391574
02/25/13 11:02 AM
02/25/13 11:02 AM
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Anonymous
Unregistered
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Anonymous
Unregistered
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Quote:
Can you tell us about the equipment you used, compressor, blaster, any tricks with hosing ect. I have a harbor freight one and it I
Either works really good or not at all. I have a 2 stage compressor but I wouldnt say it is the biggest out there. Your car looks really nice and white. Looks good.
I have a 30cfm-80gal compressor and used a water separator at sandblasting unit which is a 100lb pot and I got 4- 55gal drums of the al-oxide for free. Best advise I could give is to get it done professionally, hassle free and no aggravation. You also need to be concerned about how the dust will affect your neibourghs.
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Re: Sand for Sandblasting?
[Re: Stanton]
#1391576
02/27/13 12:55 PM
02/27/13 12:55 PM
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Joined: Jan 2003
Posts: 5,948
British Columbia
chrisf
master
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master
Joined: Jan 2003
Posts: 5,948
British Columbia
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Quote:
Well with all this talk about recycled glass and since the stuff in my cabinet was due for a change I decided I'd try it. Now this is in a cabinet but the results should be similar to a pot.
Well my friends, the stuff is crap as far as I'm concerned. It doesn't even come close to the performance of sand when it comes to paint and rust removal. If I had to estimate it in time I would say it would take TEN times as long to achieve the same results.
I will say this though - its less dusty and it leaves a nice "sparkly" finish to the surface. I didn't try it on aluminum but it just might leave a finish similar to a brand new aluminum intake.
Back to sand ...
Your comparison is fairly flawed, The glass you bought isnt the same grit as your sand so obviously its going to be slower and less agressive. I would assume your sand is around a 20-30 grit so go buy 20-30 grit glass and try it. 20 grit sand paper vs 100 grit sandpaper which one cuts harder?
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Re: Sand for Sandblasting?
[Re: chrisf]
#1391577
02/27/13 01:01 PM
02/27/13 01:01 PM
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Joined: Feb 2005
Posts: 28,312
Cincinnati, Ohio
Challenger 1
Too Many Posts
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Too Many Posts
Joined: Feb 2005
Posts: 28,312
Cincinnati, Ohio
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Quote:
Quote:
Well with all this talk about recycled glass and since the stuff in my cabinet was due for a change I decided I'd try it. Now this is in a cabinet but the results should be similar to a pot.
Well my friends, the stuff is crap as far as I'm concerned. It doesn't even come close to the performance of sand when it comes to paint and rust removal. If I had to estimate it in time I would say it would take TEN times as long to achieve the same results.
I will say this though - its less dusty and it leaves a nice "sparkly" finish to the surface. I didn't try it on aluminum but it just might leave a finish similar to a brand new aluminum intake.
Back to sand ...
Your comparison is fairly flawed, The glass you bought isnt the same grit as your sand so obviously its going to be slower and less agressive. I would assume your sand is around a 20-30 grit so go buy 20-30 grit glass and try it. 20 grit sand paper vs 100 grit sandpaper which one cuts harder?
Used glass beads out of glass beader is already junk before you blow it through your blaster because it was already crushed too fine.
I run glass beads at low pressures in a effort to prolong the beads. You can tell when there used up because it get's dusty in my cabinet.
Also like Chisf said, there are many different grades of glass.
Then crushed glass is different than glass beads.
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