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#1
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Personally, 6 inches below the soil here, it is all sand. Two buckets full with the tractor, and I have enough for the season. I have to let it dry, then sift it through an appropriate screen. I reuse it a couple times until it is getting too fine, then use fresh from the pile.
If you are buying sand (or whatever medium you decide to use), it does tend to make the whole operation cost just as much or more than taking it to the local blaster. I could not imagine trying something like this in a residential area. |
#2
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I have one of these sand blasting units and have used for a number of years. It's great for smaller items but if you're planning to blast large items make sure that you've got pleanty of time on your hands and a good supply of blasting grit at hand. I sand blasted a whole RL bedford cab with mine... it took a couple of weekends. As it is a small unit it doesn't chew through heavy paint or heavy rust particularly fast.
All previous feedback applies... a good air supply is very important as well as some good dry sand or garnet. If the sand isn't dry or the is any larger bits in it the bottom valve can block. The nozzles and control valve can wear out over time. I took to re-cycling the sand as my supply was limited... buying garnet can be expensive but it's more effective than other products in my view. A good clean work area where you can sweep up the sand and then seive it worked ok. Downside of doing this as the process gets a lot more dusty and the blasting process can take longer. A good hi quality face mask is important. Be prepared to get dirty. |
#3
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DON'T use sand! Silicosis is a cruel and lingering killer.
Lots of suppliers are out there to supply various abrasive media; Garnet, Rutile, Al Oxide, Silicon Carbide, even Soda (granulated Bi-Carb). All depends on what you're cleaning and what finish you want. But never use sand. |
#4
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While I fully understand the danger of silicosis, with proper precautions the threat is manageable. An air supplied helmet is best, otherwise a tightly and properly fitting respirator will do the trick.
There is not a lot of difference between the dust of sandblasting and being the rear-most M113 in a company of carriers traveling along the fireguards in Shilo, with the exception that I have proper respirator or air supplied hood when I am sandblasting. In the military we usually got nothing but our combat scarf. |
#5
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I would invest in a cabinet , or maybe build a cabinet, lots of plans out there .
I do have a small cheap generic SCA brand cabinet , I use it for spark plugs and other small items and its been a handy thing. SCA also sells bags of the abrasive , black stuff. Super Cheap Auto .... do they sell anything that is not made in China
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1940 cab 11 C8 1940 Morris-Commercial PU 1941 Morris-Commercial CS8 1940 Chev. 15cwt GS Van ( Aust.) 1942-45 Jeep salad |
#6
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I have a vacuum blast cabinet. Probably a good unit, but older now.
The vaccuum system is a bit touchy, I imagine a pressure system is better. I find it painfully slow. I have a 12 cfm compressor. It is about the biggest single phase unit on the market and it runs out of puff very quickly. You need a 3 phase compressor or a diesel powered outfit. The other thing I could do, is to hook in a second compressor. Anyhow Lionel, my advice is to take your chassis, wheels, and other big bits, to the commercial people. Otherwise (I believe)you will decide that your life is too short to waste it holding a near useless gun for hours and hours. In support of Tony's comments, It is illegal to use silica sand for blasting in N.Z.(in a business situation) I'm not saying dont buy that set up. You can do the small stuff that the commercial guys might loose while they are trying to chase it around the floor. My outfit managed to loose one of my carrier suspension springs. This was years ago, when they did it outside. That doesn't happen any more. Sorry Guys. I don't know why the pictures are upside down (i'm not trying to favour the northern hemisphere guys)
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Bluebell Carrier Armoured O.P. No1 Mk3 W. T84991 Carrier Bren No2.Mk.I. NewZealand Railways. NZR.6. Dodge WC55. 37mm Gun Motor Carriage M6 Jeep Mb #135668 So many questions.... Last edited by Lynn Eades; 19-07-20 at 22:05. |
#7
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Hey, Lionel.
No specific mention of a sandblster in the listing, but there's an interesting auction in Bundy this weekend with lots of workshop equipment: https://www.gumtree.com.au/s-ad/bund...cks/1252473810 I see some good stuff in the pics! |
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