Sand blasting pot

[max68]

Hi guys,

I was wondering if anyone has used a sealey SB993 portable sandblasting pot (tried to post a link but didn't work) and if are any good for small jobs?
Also, I have a few bags of fine sand, can I use it for blasting?

Ta

 

[rtbcomp]

Add the link anyway and I'll see if I can get it to work.

What sort of sand? If it's garnet that will be OK, but it's illegal to use silica based sand (such as kiln dried) and it's not very good anyway.

You're better off with J-Blast Supafine or glass grit etc.

 

[max68]

Ok, here is the link: http://www.powertoolwarehouse.co.uk/sealey-sb993-shot-blasting-kit.html

Working now!

I need to blast some mild steel btw.

 

[rtbcomp]

That device is an expensive way of buying a bucket. Really a pressure pot is best but if you must use a syphon gun get one from Machine Mart for £15.00 and buy a bucket from a hardware store.

I've just bought a professional gun with a tungsten carbide nozzle from Anglo-Scott abrasives for about £50, first impressions very favourable.

 

[max68]

Ok, thanks for that.

My problem is that I'm on a tight budget and don't really want to spend a fortune.

Was looking at siphon guns too. Is this one the one you've mentioned? http://www.machinemart.co.uk/shop/product/details/sb4-sandblast-kit-pick-up-hose

 

[rtbcomp]

That's the one. The nozzles don't last very long though and on mine the trigger valve stuck and one of the grubscrews cross-threaded the first time I changed the nozzle.

 

[max68]

That's the one. The nozzles don't last very long though and on mine the trigger valve stuck and one of the grubscrews cross-threaded the first time I changed the nozzle.

Thanks again for the quick reply.

I only need to use it a couple of times, maybe three. It should do I suppose.

 

[rtbcomp]

In that case go for cheap and cheerful.

As a matter of interest is it paint or powder coating you want to shift? That gun won't touch powder coating and may struggle with some modern paint finishes.

 

[max68]

I need to remove some rust and some old paint.

Oh, another thing, on the description it sais that you'll need a 3hp compressor and I only have a 1.5hp one. Does this mean that it won't work at all?

 

[rtbcomp]

You'll really be struggling with a 1.5hp compressor, the one advantage of a syphon gun is that you can give short sharp blasts, but those guns use a lot of air. Could you borrow anothe compressor and use two together?

If I were you I'd take a punt on the Clarke gun and if it doesn't work you've at least had a new experience!

 

[max68]

Thanks again. I'll see what I can do.

 

[malcolm]

The Clarke one in the link has a 6mm nozzle and is a syphon type. I've got one similar at home and it can just about blast a tiny spot before the air runs out. Utterly useless. Turns out a 6mm nozzle running at sensible pressure would require 68cfm! I'd suggest pressure pot or get someone else to do it. http://www.mig-welding.co.uk/sandblasting.htm

 

[rtbcomp]

The 6mm nozzle isn't the air nozzle, that is much smaller. I'm suprised yours is that bad Malc, mine works OK, but I wouldn't use it for continuous blasting.

The one I got from Anglo-Scott has a choice of two air nozzles, it's the BHP12 Our Products > Gritblast guns