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reclaiming casting slip

updated mon 21 may 01

 

M.S. Flood on fri 18 may 01


Dear Clayart friends:

I recently began using low fire casting slip for some of my relief
sculptures. Can I reclaim the scrap clay the same way I would reclaim
regular low fire clay, i.e. take bone dry scraps, add water to make
slurry, dry on plaster bats? Or is there a special trick because of the
deflocculants in the casting slip clay? Thanks for your help.

Bridget McDermott Flood
fireworks studio
St. Louis, MO

Ababi on sat 19 may 01


Hello M.S. Flood!
I tried, but of course you must test it yourself.
dry clay, not or fine grog.
1.5% soda ash. 1.5 Sodium silicate.
400cc( milliliter( water)My good adviser told me lately I should use
distilled water.
He also said defloculat: 3%, In the summer more Sodium silicate, to slow
drying in the winter the other way.
If you use different claybodys mix them until they will be the same color
and texture.
I use these slurries as magic slurries follows Lana Wilson's Magic water.
For each claybody its slurry.
Another thing 1.5 and 1.5 nothing holly in these numbers, just try. Can be
that you will need a little more water, or if the spoon, had two point two,
do not dump the mix.!
Ababi
ababisha@shoval.ardom.co.il
http://members4.clubphoto.com/ababi306910/
http://www.milkywayceramics.com/cgallery/asharon.htm
----- Original Message -----
From: "M.S. Flood"
To:
Sent: Saturday, May 19, 2001 5:04 AM
Subject: Reclaiming casting slip


> Dear Clayart friends:
>
> I recently began using low fire casting slip for some of my relief
> sculptures. Can I reclaim the scrap clay the same way I would reclaim
> regular low fire clay, i.e. take bone dry scraps, add water to make
> slurry, dry on plaster bats? Or is there a special trick because of the
> deflocculants in the casting slip clay? Thanks for your help.
>
> Bridget McDermott Flood
> fireworks studio
> St. Louis, MO
>
>
____________________________________________________________________________
__
> Send postings to clayart@lsv.ceramics.org
>
> You may look at the archives for the list or change your subscription
> settings from http://www.ceramics.org/clayart/
>
> Moderator of the list is Mel Jacobson who may be reached at
melpots@pclink.com.
>

Sammy Shuford on sat 19 may 01


I don't know about drying on bats, but I reclaim both dry and leatherhard
scrap by soaking, and remixing for slipcasting.
Hope this helps.
----- Original Message -----
From: "M.S. Flood"
To:
Sent: Friday, May 18, 2001 11:04 PM
Subject: Reclaiming casting slip


> Dear Clayart friends:
>
> I recently began using low fire casting slip for some of my relief
> sculptures. Can I reclaim the scrap clay the same way I would reclaim
> regular low fire clay, i.e. take bone dry scraps, add water to make
> slurry, dry on plaster bats? Or is there a special trick because of the
> deflocculants in the casting slip clay? Thanks for your help.
>
> Bridget McDermott Flood
> fireworks studio
> St. Louis, MO
>
>
____________________________________________________________________________
__
> Send postings to clayart@lsv.ceramics.org
>
> You may look at the archives for the list or change your subscription
> settings from http://www.ceramics.org/clayart/
>
> Moderator of the list is Mel Jacobson who may be reached at
melpots@pclink.com.

Ababi on sat 19 may 01


Sorry Sorry Sorry1.5 Grams for 1000 Grams not 1.5% What a mess!
----- Original Message -----
From: "Ababi"
To: "Ceramic Arts Discussion List"
Sent: Saturday, May 19, 2001 5:29 PM
Subject: Re: Reclaiming casting slip


> Hello M.S. Flood!
> I tried, but of course you must test it yourself.
> dry clay, not or fine grog.
> 1.5% soda ash. 1.5 Sodium silicate.
> 400cc( milliliter( water)My good adviser told me lately I should use
> distilled water.
> He also said defloculat: 3%, In the summer more Sodium silicate, to slow
> drying in the winter the other way.
> If you use different claybodys mix them until they will be the same color
> and texture.
> I use these slurries as magic slurries follows Lana Wilson's Magic water.
> For each claybody its slurry.
> Another thing 1.5 and 1.5 nothing holly in these numbers, just try. Can be
> that you will need a little more water, or if the spoon, had two point
two,
> do not dump the mix.!
> Ababi
> ababisha@shoval.ardom.co.il
> http://members4.clubphoto.com/ababi306910/
> http://www.milkywayceramics.com/cgallery/asharon.htm
> ----- Original Message -----
> From: "M.S. Flood"
> To:
> Sent: Saturday, May 19, 2001 5:04 AM
> Subject: Reclaiming casting slip
>
>
> > Dear Clayart friends:
> >
> > I recently began using low fire casting slip for some of my relief
> > sculptures. Can I reclaim the scrap clay the same way I would reclaim
> > regular low fire clay, i.e. take bone dry scraps, add water to make
> > slurry, dry on plaster bats? Or is there a special trick because of the
> > deflocculants in the casting slip clay? Thanks for your help.
> >
> > Bridget McDermott Flood
> > fireworks studio
> > St. Louis, MO
> >
> >
>
____________________________________________________________________________
> __
> > Send postings to clayart@lsv.ceramics.org
> >
> > You may look at the archives for the list or change your subscription
> > settings from http://www.ceramics.org/clayart/
> >
> > Moderator of the list is Mel Jacobson who may be reached at
> melpots@pclink.com.
> >
>

Ceramic Design Group on sun 20 may 01


We reclaim all the scraps from our many casting slips on a periodic basis.

Remember that the scraps no longer have any water left in them, and there is
little or no deflocculant left either.

To reclaim, add a small amount of water, let soak, and mix with a jiffy
mixer or what ever is your mixer of preference. Sieve the resulting slurry
and test for specific gravity. Adjust as necessary but keep the SG a few
points higher then desired. Then add whatever deflocculant you use to get
the viscosity within a few points, again higher, of what you need. Mix well
and let sit over night as SG and viscosity will change. Take some readings
the next day and adjust as necessary.

Don't just add your dry trimmings, fettles, scrap, etc to your main blunger.
Always treat the reclaim as just a new, separate batch. When fully adjusted,
then add it to your main tank. It works every time.

BTW, slip needs to age just like plastic clay. A fresh batch of asting slip
will cast far better if left to age for a while.

Jonathan

Ceramic Design Group
PO Box 775112
Steamboat Springs CO 80477
voice and fax 970 879-9139
jdkaplan@cmn.net
info@ceramicdesigngroup.net

Plant Location:
1280 13th Street Unit 13
Steamboat Springs CO 80487
(please use this address for all deliveries via UPS, comman carrier, Fed Ex,
etc.)

"Custom design and manufacturing for the ceramic arts, giftware and pottery
industries. Molds, models, and tooling for slip casting, jiggering and
hydraulic pressing. Consultation on technical issues such as clay bodies
glazes, and kilns."