Neta Weiss on tue 25 apr 00
Hello,
I am looking for a sand type that when mixed with cement will make it black
cement.
I do not want to use pigments.
Does anyone know what sand can be used and where to find it ?
Thanks,
Sincerely,
Neta
Cindy Strnad on wed 26 apr 00
Neta,
You can use black volcanic sand. I don't know where you'll get it unless you
happen to live near a volcanic island, but maybe your building supply store
will be able to help you. I don't think using this sand will make your
cement black, but you can give it a try.
Cindy Strnad
earthenv@gwtc.net
Earthen Vessels Pottery
RR 1, Box 51
Custer, SD 57730
Paul Brinkmann on wed 26 apr 00
For what its worth. I have heard and seen on television, that there is black
sand on one of the Hawaiin Islands. Dont remember which one is was. But it
might be a place to start searching. Good hunting.
Janet Kaiser on thu 27 apr 00
I know of a couple of beaches in New Zealand where the sand is black... The
giant Rio Tinto wanted the "mineral rights" but were refused...
However, I do not believe black sand will be the answer unless it is
extremely fine. The cement itself needs to be stained, otherwise the liquid
that gathers on the surface will stay grey and spoil the effect of any black
in the "body". Unless this is for a cast piece?
Be careful to check the mineral content of any black sand you are offered...
It could have high concentrates of stuff like iron which would affect the
strength of the cement. Or even effect the ability to set.
Is there a reason not to use stains?
Janet Kaiser - feeling much better and ready for the workers' holiday - May
Day!
The Chapel of Art, Criccieth LL52 0EA, GB-Wales
Home of The International Potters Path
TEL: (01766) 523570
WEB: http://www.the-coa.org.uk
EMAIL: postbox@the-coa.org.uk
----- Original Message -----
From: Cindy Strnad
To:
Sent: 26 April 2000 17:59
Subject: Re: What sand mixed with cement will make it black ?
> ----------------------------Original message----------------------------
> Neta,
>
> You can use black volcanic sand. I don't know where you'll get it unless
you
> happen to live near a volcanic island, but maybe your building supply
store
> will be able to help you. I don't think using this sand will make your
> cement black, but you can give it a try.
>
> Cindy Strnad
> earthenv@gwtc.net
> Earthen Vessels Pottery
> RR 1, Box 51
> Custer, SD 57730
>
Peter Atwood on thu 27 apr 00
Hi,
It is my understanding that cement can be dyed any color you want. I would
contact a masonry contractor or two out of the yellow pages to find out what
to add for this effect.
Peter Atwood
________________________________________________________________________
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rickmahaffey on fri 28 apr 00
hello clayarters,
Back in 1970, ro so, a classmate wanted to make some black concrete, so
she went to the supplier and they sold her some special stain in a nice
cardboard tube container. I think she paid about $5 or $6 for about one
pound (454 gm). When she looked at it the label said Black Iron Oxide.
She said I could have gotten that for free in the glaze room! Try Black
iron oxide to color the cement or premix.
Rick Mahaffey
Tacoma, Washington, USA
the Gallaghers on fri 28 apr 00
I think you might add mason stains for coloring cement.
Makes sense to me.
Michelle
-----Original Message-----
From: Peter Atwood
To: CLAYART@LSV.UKY.EDU
Date: Thursday, April 27, 2000 11:48 AM
Subject: Re: What sand mixed with cement will make it black ?
----------------------------Original message----------------------------
Hi,
It is my understanding that cement can be dyed any color you want. I would
contact a masonry contractor or two out of the yellow pages to find out what
to add for this effect.
Peter Atwood
________________________________________________________________________
Get Your Private, Free E-mail from MSN Hotmail at http://www.hotmail.com
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