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Thread: Sand blasting?
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18th December 2007, 10:30 PM #1Product designer retired
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Sand blasting?
Dear members,
I have just received a quote of $200 to sand blast a metal stand for a lathe. It's been roughly painted, and is rusty in places.
It's about 1200 long, 450 wide, and 800 high, open in the middle with a bottom and centre shelf.
At this stage of my life, I have more time than money.
Is sanding blasting at home a viable proposition, is there a unit on the market that really works, or should I leave this dirty job to the experts?
I have a 2.75 HP compressor.
Ken
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18th December 2007 10:30 PM # ADSGoogle Adsense Advertisement
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18th December 2007, 10:36 PM #2Member
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$200 seems a little high to me. Suggest to get some other quotes. If powdercoating sandblsting is way to go. If painting yourself try wire brush on angle grinder etc etc. A little bit of rust or paint left behind is no issue if you use rust converter and primer.
Steve
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18th December 2007, 11:42 PM #3Senior Member
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Ken,
Just some thoughts on sandblasting, I have one of those pressure pot types and an 18cfm compressor and it struggles to keep up, need to rest it about every 4 minutes to build up steam again. Its also a total loss set up, if your'e on a busk block OK but if neighbours close by they may not be too happy with grit in their washing. Don't know about EPA. I think as Nexusone says a wire brush and some rust converter would be the way to go on a one off job. My observation, sandblasting does not kill rust if its well pitted, you still need to treat it.
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18th December 2007, 11:53 PM #4SENIOR MEMBER
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Leave the dirty job to the experts, I had to blast some bits car subframe and it was the worst job, years later Im still finding grit, you loose skin, cant breathe properly ect, dont do it yourself, that being said 200 is a bit steep ask around by the description it will cost you about 60 bucks and they put a coat of primer back on if you want
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19th December 2007, 08:42 AM #5.
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What about paint stripper to soften the paint and then a hire a high pressure water jet to strip the softened paint off? You can probably buy a small high pressure blaster for less than $200
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19th December 2007, 09:13 AM #6SENIOR MEMBER
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19th December 2007, 01:16 PM #7Intermediate Member
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Blast Material
If you go the DIY route, don't use normal sand as blast material. I think you can google on Silicosis for the reason. Anyway, someone warned me about this. Not 100% sure if it is a problem or not.
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19th December 2007, 05:39 PM #8
Yes, silicosis is a real problem when blasting sand, and you should use a respirator to protect against the fine grit being toosed around. You can't sand blast on the baby compressors it's to hard on the little devils, shop around and see if you can get a cheaper quote or ask for a cash price if you feel inclined, can make a real difference just before christmas.
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20th December 2007, 07:30 AM #9
Normal bricklayer's sand that you get at the garden centre won't work because it is too round. You need proper blasting media (garnet sand), which is more expensive. It makes a hell of a mess, it will overtax any home compressor set-up, and you need an expensive dust mask and eye protection.
I have a good mask but was still tasting the grit a day after my one and only open air blasting adventure.
Greg
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