stevebubs
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| posted on 13/3/06 at 03:44 PM |
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Media for sandblasting
Need to blast some wheels - where can I get suitable media from (don't want to resort to mail order before someone says "Screwfix"
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NigeEss
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| posted on 13/3/06 at 04:02 PM |
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The beach 
Seriously though, on a small scale (hand held grit blast gun) I have used sand from a builders yard.
Dried it out in the oven on a baking tray.....no, she was'nt too impressed
[Edited on 13/3/06 by NigeEss]
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NS Dev
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| posted on 13/3/06 at 04:22 PM |
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Kiln dried sand about £3 a 25kg bag from B&Q warehouse.
[Edited on 13/3/06 by NS Dev]
Retro RWD is the way forward...........automotive fabrication, car restoration, sheetmetal work, engine conversion
retro car restoration and tuning
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rusty
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| posted on 13/3/06 at 04:42 PM |
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Machine mart if there is one near you
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Johnmor
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| posted on 13/3/06 at 05:28 PM |
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Kiln dried sand
Sand works ok, but make sure you wear a good dust mask or use a purpose built cabinet as it contains high amounts of silica, very,very bad for the
lungs.
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britishtrident
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| posted on 13/3/06 at 05:34 PM |
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B&Q sell the proper stuff in the garden section with pressure washer accesssories -- because you can sandblast with a pressure washer attachment
BUT it is very coarse sharp grade media I wouldn't use it or any other sand media on wheels or alloy castings --- for wheels you want either
glass beads or crushed cherrry or apricot stone blast media.
Most bigger engineers merchants carry blasting media also Machine Mart.
[Edited on 13/3/06 by britishtrident]
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emsfactory
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| posted on 13/3/06 at 07:00 PM |
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Aluminium oxide works well for me.
Get it from Machine Mart.
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rusty nuts
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| posted on 13/3/06 at 07:11 PM |
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Check out your local Yellow pages for sand/blasting supplies . Be very careful if using normal sand as already suggested ! Think it may be illegal to
use though
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britishtrident
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| posted on 13/3/06 at 08:13 PM |
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Wet blasting is a lot safer and very effective but you need a decent sized pressure washer to drive and drying out the blast media is a pig.
Also wet blasting steel produces an instant very light coat of of rust to replace paint and rust you have just taken off.
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stevebubs
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| posted on 13/3/06 at 08:53 PM |
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quote:
Originally posted by emsfactory
Aluminium oxide works well for me.
Get it from Machine Mart.
Do they carry it in stock in the shops?
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NS Dev
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| posted on 14/3/06 at 12:18 AM |
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I have been round and round and round this one.
Tried everything except shot, which I think is the answer (or glass for ally castings as BT said)
However, kilned sand is ridiculously cheap by comparison, and none of my "cabinets" have really succeeded in containing any of the media
that I have used.
I have found the best approach is to blast out in the garden, forget recovering the sand(not worth it for what is costs).........................oh
and don't tell the police in case it's illegal and hold my breath while sacrificing a pig just to make sure on the silicosis front.
Retro RWD is the way forward...........automotive fabrication, car restoration, sheetmetal work, engine conversion
retro car restoration and tuning
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NS Dev
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| posted on 14/3/06 at 12:20 AM |
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PS those blast guns from machine mart couldn't blast the skin off a rice pudding.
I built a pressure pot blaster from an old scrap "size Y" CO2 cylinder and various valves and tee pieces for about a fiver and it will
bore through a paving slab using sand in not many seconds.
Retro RWD is the way forward...........automotive fabrication, car restoration, sheetmetal work, engine conversion
retro car restoration and tuning
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