Sand Blasters

Has anyone experience of using the 'pot type' total loss sand blasters
that turn up on eBay regularly at about £80 ? Basically a 10 gallon
pressure pot with suitable hoses and nozzles ? I need to strip back
several square meters of grotty paint on sheet metal, and a bit but no
too much thankfully that is rusted.
Are they resonably effective?
Can you infact collect and recycle the media with strategically placed
poly sheeting?
What media (I assume dry sand is out due to silicosis) to use ?
They claim 6-25 cfm air use - or do you really need a road compressor?
AWEM
Reply to
Andrew Mawson
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It it was me I would take them off (if possible) and pay someone to do it, as far way as possible. A friend of mine did this for a living and I once had a go at it for about an hour. Horrible. Grit everywhere. Don't forget you would need a helmet hood as well, usually with a filtered air supply into it too. Incidentally I just got a quote to blast my rusty Myford stand, and this was =A350 to blast it and then a blow over with red oxide paint.
Peter
Reply to
Peter Neill
blasters
placed
compressor?
It it was me I would take them off (if possible) and pay someone to do it, as far way as possible. A friend of mine did this for a living and I once had a go at it for about an hour. Horrible. Grit everywhere. Don't forget you would need a helmet hood as well, usually with a filtered air supply into it too. Incidentally I just got a quote to blast my rusty Myford stand, and this was £50 to blast it and then a blow over with red oxide paint.
Peter
Sadly not removable - it's blast or paint strip or rotary strip none of which are nice !
AWEM
Reply to
Andrew Mawson
grit stripper disk at slow speed 50 rpm the paint wont clog at this speed sand blasting with cheep sand blast pots is not that good comperssed air must be dry and a good volume dont confuse with presure it depends on what you have avalable 3 m strip and clean work well try Jand L you could buy a cheep orbital sander from B & Q
Andrew
Andrew Maws> Andrew Maws> > Has anyone experience of using the 'pot type' total loss sand
Reply to
andrew
Hi Andrew. We used a similar device for sand blasting the Royal Scot boiler some time ago.Yes they are effective but even with a fairly small nozzle a 100cfm compressor couldn't keep the pressure up for long and we had to stop from time to time to refill the air reservoir. We eventually borrowed a mobile machine with a V10 Cummings engine that was I think rated at 350 cfm and that was much better!!. You can catch and re-cycle the blasting grit and on a big job like the boiler it made sense to do so. Some people use dry silver sand as a medium but the best we found was a very sharp black material sold as blasting medium. I can't remember the name but I can probably find out if required. If you are doing much you should also invest in a protective hood with it's own supply of breathable air
Colin
Reply to
Colin Ager
I've tried to use one on my 3hp 15cfm compressor with a 50 litre tank. It ran for about 30 seconds to a minute and then needed to wait fro the air pressure to build up again. It is very hard on the compressor. I was using it outside (on the lawn) to blast some car wheels. Don't even think about doing it inside. It did a good job but took for ever because of the waiting time. I used dry fine sharp sand and reused it. It can only be used a small number of times as it rapidly turns to dust which blows away.
Next time I will take them to have them done!!
Malcolm
Reply to
Malcolm

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