Beach sand can be used for sandblasting

Sandblasting, Sep 27 2010 3:49 pm

SurnamemessageMcCormickpascal


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Hello,
bought a sandblasting gun from Westfalia. Now I still need the right abrasive for it! Everything, from small parts to the bonnet, wants to shine. What thickness should the grains be? Fine, medium, coarse grain? I don't know my way around that well.

What kind of abrasive can you recommend? My pistol can blast with the fine and coarse grain.

And where can I buy that stuff ?? On the Internet, for example, you can already buy 50kg sacks of sand, medium grain size for 32 €, BUT there is still 49 € shipping

So best from the hardware store?
  
Post rating:
kai 353



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79 posts

If you don't have a gun that works according to the pressure blasting process, you can take normal quartz sand from the hardware store.

 
Post rating:
McCormickpascal


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My gun

Well, pressure blasting?

With quartz sand I have to wear a face mask because of these poisonous particles ?? I read somewhere that the stuff can be pretty dangerous!
 
Post rating:
645XL



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67 posts

You should always wear a face mask, eye protection, gloves, etc. when blasting, whether with sand, glass, nutshells or whatever else there is.

greeting
Markus

________________________________________
a tug can't be red enough!

http://www.mein-woodworking.de
 
Post rating:
Lef.



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3386 posts

Hello Pascal, I also got a blast gun for the small parts.
So far I've only blasted with quartz sand from the hardware store.
Since I am beaming on my lawn, I don't need any because of the material being sprayed
To worry about.

For protective equipment:
Well-closing glasses, the stuff flies everywhere.
Respiratory protection, who knows what mess was stirred into the old paint.
Gloves and long sleeves. I once had a small part blasted in my hand (with a glove),
But then I went off course and got a nice colorless tattoo
fried on the forearm. I can tell you this bites ...

In addition, I always button the shirt all the way up,
otherwise you won't just find the sand in your socks in the evening.

greeting
Jörg
 
Post rating:
McCormickpascal


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Okay, I'll do that How much does the quartz sand cost at the hardware store? In what sizes can you buy it?

How did you go about shining, do you have to pay attention to anything?
 
Post rating:
Lef.



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3386 posts

If I remember correctly, a 25kg sack costs 6-7 euros.
Make sure that the sand is dry.
The parts should be free of grease and grease, so that the blasting lasts forever.
If the constant filling of the can gets on your nerves, you can too
Place a piece of 1/2-inch garden hose on the pipe and dig directly into the sandbag.

I have the compressor in the garage so that the dust doesn't get sucked in again straight away.
Since the compressor (I have 400l / min intake air) almost runs through during the action,
I gave him a break every now and then, it gets damn hot.

I didn't wire large areas with it, it's faster with a braid brush and Flex.
Besides, I don't plan to turn my garden into a desert.

greeting
Jörg


Changed by Lef. on Sep 27, 2010 8:39 pm
 
Post rating:
Julie 1246



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181 posts

As Markus has already written, you have to protect yourself and others in the best possible way. Quartz sand & Co. are respirable, i.e. these materials, especially when they are reused and are almost dusty, can get stuck in the lungs and trigger all sorts of things.
First of all, it is important that you have a compressor that has enough liter capacity (min. 300 liters / minute) otherwise you will literally run out of breath quickly. Then things are not going right and you have to wait again and again until there is enough volume / pressure.
You can only use quartz sand with this gun, as it cannot suck in / convey blast furnace slag, for example, due to the small pipe diameter. For a better effect, you can also use so-called pool filter sand (hardware store), as this is coarser than normal quartz sand.
Your system with this blasting gun is not suitable for a complete bonnet. There you smile at the one year old. Something like that is more suitable for screws or other small parts.
I bought a small, closed blasting cabin (approx. € 350). You can blast parts up to approx. L / W / H 500/300/300 mm with it. The arms are put into long gloves from the outside. The sand is caught at the bottom and used again. I can do that in my best Sunday suit, the thing is absolutely tight.

greeting
Ulli

(By the way: do you also have a first name? It's a bit strange if you can't address anyone.)
 
Post rating:
McCormickpascal


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Post rating:
Lef.



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3386 posts

Pascal. the compressor should be enough ...

try the hood and report please.
I share Ulli's experience, but that's not good for large parts.
I have no experience with pool sand, but I will when a new one
Sack is due to try it out.

I wish you success
Jörg
 
Post rating:
McCormickpascal


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Do you mean this sand? Now only have a Hagebau market within reach !!

Quartz sand

I am still wondering if I have to bring my own sack with me
 
Post rating:
ihc744A


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363 posts

Hello Pascal,

Quartz sand is a possible cause of silicosis. Regardless of the protective equipment, I would not blast with such a sand. It is better to use the correct abrasive material (this is usually marked as non-hazardous for silicosis). And on Ebay it's also much cheaper than what you suggested.

mfg Andreas
 
Post rating:
McCormickpascal


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Something like this e.g.
Blasting material

or this?

Blasting material

Which grain size would be best suited for my purposes? Is really very cheap !! 8 € for 25KG and only 8 € shipping !!
 
Post rating:
Lef.



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3386 posts

Hi Andreas,
I don't want to play down the silicosis,
but I think that on my trips to Denmark I will go to the sea
I inhaled significantly more quartz sand than when blasting with approx.
50kg quartz sand and with respiratory protection.

Silicosis is briefly described here:

de.wikipedia.org/wiki/Silikose

The workers are at the mercy of the quartz sand much longer and more violently.

But I think your hint is very good, then everyone can decide for themselves whether they want to expose themselves to it.
In the future I will definitely make sure that nobody is unprotected in the
Dust area.

greeting
Jörg




Changed by Lef. on Sep 28, 2010 10:35 am
 
Post rating:
Julie 1246



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181 posts

Hello Pascal,

The previous speakers are of course right when they say that quartz sand is not that harmless. The used sand is critical when it is "blown" into dust. So protect well. The beach sand in Denmark is usually not yet dust. However, you should better use the "silicosis-harmless" blasting agent when you can get your hands on it. But because of your gun, it should have a grain size of less than 1 mm.

greeting
Ulli
 
Post rating:
ihc744A


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363 posts

Hello Jörg,

You are of course right, one is unlikely to get sick from a single application.
But I see it this way: It is an unnecessary burden that can be completely bypassed with insignificant additional effort (if one can speak of additional effort at all).

I have two more in-depth links here for those who are interested:
www.umweltschutz-bw.de/?lvl=2357
www.umwelt-online.de/recht/arbeitss/uvv/bgr/217_ges.htm

mfg Andreas
 
Post rating:
Lef.



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3386 posts

Hi Andreas,
I chose quartz sand because it's so beautiful, of course,
and is free of chemicals (heavy metals).

I was completely clueless about silicosis. I have in the first place
the exposure to the emitted paint, especially the lead in the old ones
Anti-rust paints, thought.

I'll look for a suitable abrasive and the rest
Use quartz sand during the next bricklaying action.

What such a forum is good for .....

greeting
Jörg
 
Post rating:
-MC 624-



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92 posts

Also blast with a closed kabiene. At the beginning it also had quartz sand in it. I can only say the result is totally modest compared to a reasonable blasting material.
In addition, there is the dust that also steams out of the cabin when the sand breaks, which happens very quickly by the way.
Greetings Thomas
 
Post rating:
scoutsman



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322 posts

I always blast with 0.8 grain blast furnace slag.
Something is really going on there. On the other hand, you can forget about quartz sand.
I use the slag up to 3 or 4 times. Depending on the purpose.
(First the coarse things, with the second or third pass the metal sheets)
Have already got through a few tons.
  
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