bortaf
Posted a lot
Posts: 4,549
|
|
Sept 27, 2010 17:39:53 GMT
|
Only a tenna, couldn't resist it could I ;D comes without the hose I had to add that from the junk pile corner   Some kiln dried sand, yeh right, kiln dried my  , was wet as hell and TBH worked better the 2nd and 3rd time through the gun so either buy some propper medium and/or make sure you collect as much as possable for re-use :thumbup: This bag cost me £3.28  a LOT cheaper than the propper blasting medium (£18.98) BUT if you collect it properly it may pay in the longrun to use the right stuff, next week i'll be testing silver sand apparently it's had larger sharper bits ?  A simple before pic of a PFL cortina Mk3 slam pannel I have, been in a barn for 20 years  Not really heavy thick rust but it would have to be sanded to get it off so not really what i'd call light rusting.  And 20 mins later and 6 hopper loads of sand (about 1/3 of the bag) but I will reuse 80% of that cos as I said it is dryer the 2nd time through the gun and flows way better, when damp you need to keep agitating the gun.  close up, nice and clean, I might try a flexable extension nozzle for the inside coners but it does fly about inside and get into the corners quite well concidering I wasn't actually trying to do the inside, just missing the bit I was aiming for cos I had me eyes closed (wear goggles ! it's way easyer ! )  One warning, it uses a LOT of air so make sure you either stop every 10 mins to let the compressore catch up/cool down or use a 100% duty cycle motor ? So all in all was it worth a tenna ? i'd say so but i'd like to try it with some larger sized balsting medium, the pickup and nozzle are quite large TBH and it recomends 0.05 - 0.08 mm sized medium which is quite large and a fiar bit bigger than the kiln dryed I used. hopw it helped some, fell free to move or remove as seen fit by the powers that be ;D |
| |
Last Edit: Sept 27, 2010 17:41:37 GMT by bortaf
R.I.P photobucket
|
|
|
|
|
|
|
Sept 27, 2010 17:48:17 GMT
|
|
Isn't using normal sand dangerous (silicosis of the lungs)?
I could be talking ballcocks of course.
|
| |
|
|
|
|
|
Sept 27, 2010 17:51:19 GMT
|
|
what size comp did you use ?
|
| |
91 golf g60, 89 golf 16v , 88 polo breadvan
|
|
bortaf
Posted a lot
Posts: 4,549
|
|
Sept 27, 2010 17:51:46 GMT
|
Isn't using normal sand dangerous (silicosis of the lungs)? I could be talking ballcocks of course. probably if you do all day every day ? i used a mask anyhoo just couldn't find me goggles  , found em when i was packing away |
| |
R.I.P photobucket
|
|
|
|
|
Sept 27, 2010 17:56:21 GMT
|
|
Lol fair enough. I've done a lot worse (2k paint for example).
Perhaps dry the sand in the oven in a big old tray first of all?
|
| |
|
|
luckygti
Posted a lot
I need to try harder!
Posts: 4,912
|
|
Sept 27, 2010 18:15:21 GMT
|
|
That looks pretty good for what it is, would it work off of my equally cheap Aldi compressor though? I could see this being a lot better to use on the van than the grinder?
|
| |
|
|
|
|
|
Sept 27, 2010 19:08:33 GMT
|
Pete - they need lots of air! It would work but you would keep having to wait for the comp to catch up, and you would make a hell of a mess. Best for doing small stuff in an enclosed box. I made a sand blasting cabinet. you can take the hopper off the bottom and connect a short length of hose to it. You can then just dump a whole bag of sand into the cabinet and let the hose suck it up in a continuous run. If you have the air for that, which I don't  Lewis |
| |
|
|
|
|
|
Sept 27, 2010 19:23:47 GMT
|
Isn't using normal sand dangerous (silicosis of the lungs)? I could be talking ballcocks of course. Not to mention media blasting with actual sand containing free silica in the UK is completely illegal has HAS BEEN ILLEGAL SINCE THE 1950's. it's not illegal like so many things of the nanny state, for fun, or because some MEP thought it was annoying, it's because it is highly degenerative to your lungs and a really really dumb idea. bortaf, unless you want to develop acute silicosis and have the lungs of a pneumonia victim - i highly doubt you're running a powered respirator, stop using sand, take a break, save some pennies and buy some proper blasting media and PPE gear. I'm not having a go, just trying to make you see sense and preserve your life a bit  to clarify, there is no cure for silicosis, and HSE tend to come down like a ton of bricks, especially if you're operating on a commercial premises. see here - www.hse.gov.uk/press/2008/coinw01708.htmbuy some proper media, walnut shells, glass beads, bicarb, or something, wouldn't want a fellow RR'r sucumbing to such a (to be frank) @#$%^&$ awful disease.  |
| |
|
|
|
|
|
Sept 27, 2010 23:42:42 GMT
|
|
what he said.
|
| |
69 Plymouth Fury Convertible 75 Range Rover 2 door 82 Range Rover 4 door
84 Range Rover 4 door 78 Datsun 120Y 2 door 78 Datsun 120Y Coupe
78 Datsun 620 Pickup 81 Datsun Urvan E23 86 Datsun Vanette van
98 Electric Citroen Berlingo 00 Electric Peugeot Partner 02 Electric Citroen Berlingo 76 Honda C50
04 Berlingo Multispace petrol 07 Land Rover 130 15 Nissan E-NV200 15 Fiat Ducato
|
|
|
|
|
Sept 28, 2010 9:05:21 GMT
|
|
I thought sand was illegal to use on a commercial basis, but not on a DIY one.
Anyway, want to use a good mask and not one of those crappy dust masks - decent 3M 06941 or similar.
Also have to think of neighbours/passers-by, where do the clouds drift.
As for air, the nozzle size you can run depends on how much air you've got. The Aldi comps would run maybe a 2mm nozzle but the tanks are so small the comp would be running constantly, not good for it. My 3hp just about runs a 3mm suction pot. Just bought a pressure pot though, see how that goes; supposed to be more efficient as no air wasted drawing up the grit.
|
| |
'66 Amazon <-> '94 LS400 <-> '86 Suzuki 1135 EFE
|
|
|
|
|
|
|
Sept 28, 2010 9:55:23 GMT
|
|
|
| |
1953 Minor (Long term project)
PT Cruiser
|
|
luckygti
Posted a lot
I need to try harder!
Posts: 4,912
|
|
Sept 28, 2010 21:35:54 GMT
|
Ah, I was wondering where I'd seen that ^^^ before. Thanks Lewis, I do have a spot blaster, but don't think that's really going to be enough to strip the wheelarch on the van I'm just putting off the inevitable grinding |
| |
|
|
|
|
|
Sept 29, 2010 6:21:02 GMT
|
|
spot blasters are the same. my blaster has a 1.6mm nozzle and that just about matches the air delivery of the aldi/lidl compressors and can be used continually. I'm currently making a blast cabinet for smaller parts to be cleaned in. There is a big difference in the cleaning qualities of using sand and the correct abrasives. my intention is to use sand as a disposable media for larger items and wear a face mask suitable for organic vapours and disposable overalls from the pound shop as the sand get everywhere. for a blast cabinet I'm using aluminium oxide. and glass beads.
|
| |
|
|
carmad
Posted a lot
Posts: 2,000
|
|
Sept 29, 2010 7:18:35 GMT
|
|
any online guides. For sand blasting ?
|
| |
|
|
bortaf
Posted a lot
Posts: 4,549
|
|
Sept 29, 2010 11:45:10 GMT
|
any online guides. For sand blasting ? yes loads, there's even videos |
| |
R.I.P photobucket
|
|
carmad
Posted a lot
Posts: 2,000
|
|
Sept 29, 2010 16:22:52 GMT
|
|
Anyone recomend any links
|
| |
|
|
bortaf
Posted a lot
Posts: 4,549
|
|
Sept 29, 2010 17:25:33 GMT
|
|
|
| |
Last Edit: Sept 29, 2010 20:36:40 GMT by bortaf
R.I.P photobucket
|
|
carmad
Posted a lot
Posts: 2,000
|
|
|
|
|
Ok I got a cabinate blaster today but need a few hints / tips
I got a bucket of glass beads with it
Now this is my first time using a blaster and maybe I am doing something wrong
But I did a few peaces like cam pullies/ an alloy thermostat housing and they came up ok
Then I stick in an old alloy wheel and it was struggling to take the paint off
Can some one recomend a more abracive media that won't wreck my cabinate ?
|
| |
|
|
|
|
|
|
|
|
Beads won't really take paint off. J-Blast Supafine or something would be better. Check out the MIG forum, there's a section of links, and one bit for blasting media etc.
|
| |
'66 Amazon <-> '94 LS400 <-> '86 Suzuki 1135 EFE
|
|
|
|
|
|
|
|
Yeah glass bead and ali oxide are more for finishing already prepped metal. You need something more agressive to actually strip rust and paint. Poweder coat is even harder as it is a bit more flexible so the blasting meda sort of bounces off.
You need to get some propper stripping media (what I am not sure tbh)
Lewis
|
| |
|
|
|
|
a LOT cheaper than the propper blasting medium (£18.98) BUT if you collect it properly it may pay in the longrun to use the right stuff, next week i'll be testing silver sand apparently it's had larger sharper bits ?
, found em when i was packing away 
