Marcia Selsor on thu 28 apr 05
I use volume rather than weight. The pulp I use is squeezed into
grapefruit size lumps. I set out the measure amounts of ingredients of
my mix and then "eyeball" the amount of paper pulp to add. I prefer 15
-25% by volume. I use newspaper pulp that I chop, soak and beat in a 5
gallon home made mixer.
Marcia Selsor
On Apr 28, 2005, at 6:56 AM, Kim Lindaberry wrote:
> Hi Folks,
>
> I'm just curious, has anyone ever figured out the ratio of the weight
> of
> the dry clay ingriedents to the weight of the dry paper added when they
> made paperclay?
>
> Kim Lindaberry
Kim Lindaberry on thu 28 apr 05
Hi Folks,
I'm just curious, has anyone ever figured out the ratio of the weight of
the dry clay ingriedents to the weight of the dry paper added when they
made paperclay?
Kim Lindaberry
Marcia Selsor on fri 29 apr 05
I mix mine in a Soldner mixer and use about 20 pounds of squeeze dried
paper pulp to a 110 pound mix of dry ingredients. It is eyeballed
because the pulp hase been squeezed and is not necessarily dried.
sometimes it is. that water would make a big difference.
Marcia
On Apr 29, 2005, at 12:08 PM, Kim Lindaberry wrote:
> Hi Marcia,
>
> Thanks for the reply. I have seen many formulas for making paper clay
> by wet mix volumes. I just find it interesting (exasperating:)) that so
> far all of them come down to an "eyeball" measurement. Every claybody
> formula I have seen before paperclay seemed to have a pound of this a
> pound of that, and so on. Even slip for casting has formulas measured
> my weight. But paperclay formulas have, take two rolls of toilet paper
> and blend it with water, etc., etc. . .
>
> I was just hoping that maybe someone had actually measured the weight
> of paper before they started mixing the clay.
>
> Hey, thanks for the info though.
>
> Kim
>
>
> On Apr 29, 2005, at 1:43 AM, Marcia Selsor wrote:
>
>> I use volume rather than weight. The pulp I use is squeezed into
>> grapefruit size lumps. I set out the measure amounts of ingredients of
>> my mix and then "eyeball" the amount of paper pulp to add. I prefer 15
>> -25% by volume. I use newspaper pulp that I chop, soak and beat in a 5
>> gallon home made mixer.
>>
>> Marcia Selsor
>>
>> On Apr 28, 2005, at 6:56 AM, Kim Lindaberry wrote:
>>
>>> Hi Folks,
>>>
>>> I'm just curious, has anyone ever figured out the ratio of the weight
>>> of
>>> the dry clay ingriedents to the weight of the dry paper added when
>>> they
>>> made paperclay?
>>>
>>> Kim Lindaberry
>>
>> ______________________________________________________________________
>> _
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>> melpots@pclink.com.
>>
>
> _______________________________________________________________________
> _______
> 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.
>
jesse hull on fri 29 apr 05
Kim,
The "weight" would depend on the type of paper you
were using.
I believe newspaper has a clay content and would
therefore have a different weight than, eg, toilet
paper. I use the latter (non-dyed, no fragrance), as
it dissolves with little blending in hot water. I
squeeze out the water and add it to my liquid slip at
10% by VOLUME, -not weight. In other words: a bucket
with a 10inch depth should be raised to 11inches after
the mass of paper is added. A tenth of a percent (by
wieght of clay content) of copper will inhibit rotting
w/o discoloring the clay. Adding paper pulp to clay in
it's liquid form is the best way to acquire even
distribution. A plaster table/ slab will make quick
workable clay from your slip.
~jessehull.
Kim Lindaberry on fri 29 apr 05
Hi Marcia,
Thanks for the reply. I have seen many formulas for making paper clay
by wet mix volumes. I just find it interesting (exasperating:)) that so
far all of them come down to an "eyeball" measurement. Every claybody
formula I have seen before paperclay seemed to have a pound of this a
pound of that, and so on. Even slip for casting has formulas measured
my weight. But paperclay formulas have, take two rolls of toilet paper
and blend it with water, etc., etc. . .
I was just hoping that maybe someone had actually measured the weight
of paper before they started mixing the clay.
Hey, thanks for the info though.
Kim
On Apr 29, 2005, at 1:43 AM, Marcia Selsor wrote:
> I use volume rather than weight. The pulp I use is squeezed into
> grapefruit size lumps. I set out the measure amounts of ingredients of
> my mix and then "eyeball" the amount of paper pulp to add. I prefer 15
> -25% by volume. I use newspaper pulp that I chop, soak and beat in a 5
> gallon home made mixer.
>
> Marcia Selsor
>
> On Apr 28, 2005, at 6:56 AM, Kim Lindaberry wrote:
>
>> Hi Folks,
>>
>> I'm just curious, has anyone ever figured out the ratio of the weight
>> of
>> the dry clay ingriedents to the weight of the dry paper added when
>> they
>> made paperclay?
>>
>> Kim Lindaberry
>
> _______________________________________________________________________
> _______
> 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.
>
brian on sat 30 apr 05
On 29/4/05 you wrote ....
>I have seen many formulas for making paper clay
>by wet mix volumes. I just find it interesting (exasperating:)) that so
>far all of them come down to an "eyeball" measurement
The celluluse is an additive.
It is not an integral part of the clay body.
Merely a temporary material that helps the clay perform in a totally unique way
Some people add it by wedging into the plastic clay but to ensure
that true bonding of the fibres and the clay platelets wet mixing is
probably the best
.
Like other additives such as grog or stains this becomes a purely
personal decision based on your working methods.
It can be a refreshing and imprecise activity amongst a sometimes
"exacting" craft
you might find this interesting reading.
http://www.gartside.info/paperclayintro.htm
Brian
--
David Martin Hershey on sun 1 may 05
Hi Kim and All,
I've been experimenting with paper clay recently.
Using it to pour very complex molded flat shapes-
less than 1/4" thick after firing.
Very interesting material, with huge unexplored potential.
As far as dry weight goes, the most scientific study I have seen
was done by Leena Juvonen in Helsinki.
(What is it about Finland, a country of only about 5 million,
that it produces so many brilliant women scientists?)
Her study used 2, 10, and 20% dry weight to dry clay
of various cellulose materials.
http://tinyurl.com/7ujox
Jerry Bennet recommends using only cellulose insulation for fibers
(which I believe Rosette Gualt doesn't like in her early books.)
He says use 200 or 300 grams to 2.5 gallons of liquid slip.
(he uses porcelain slip) He says you can use up to 800 grams
for sculpture clays.
http://tinyurl.com/9cugd
I believe Graham Hay says to use 200 grams of newsprint
per kilo of clay, but I think raw newsprint is a poor material choice.
If you live in the US, you may want to try Celluclay.
It's relatively expensive to buy retail, but a small package will
yield quite a volume of paper slip. Available at all art/crafts stores.
I think it is a superior, extremely fine cellulose- probably could be
mixed in dry, but I haven't tried that yet. I've been using it at 25%
by wet pulp volume method.
http://www.activaproducts.com/cellu.htm
BTW, Rosette has just released a newly updated book.
I ordered it but haven't received it yet- I assume it's excellent.
http://tinyurl.com/8hrbh
Or you could get it from ClayArt's good friend Steven Branfman.
781 449-7687
Good luck with your paper clay explorations.
Best, DMH
Beautiful Hermosa Beach CA USA
where thinking of paper clay
brings memories of
our dear departed friend
Ababi...the glaze addict
Kim Lindaberry on sun 1 may 05
Hi Brian,
Thanks for the link to your website. Its interesting reading.
While some may find mixing their paperclay by eyeball measurements a
"refreshing" activity, it just seems that part of what working with
clay is all about is being able to have consistent and repeatable
results. I do realize that the cellulose is an additive to the claybody
but I feel the proportions of it certainly must be an integral part in
the suitability and workability of the clay. Too little or too much of
the cellulose and it wouldn't have the desired and necessary properties
that make it such a great medium. I may eventually adopt your approach
to mixing and find it as refreshing as you do, but I guess I probably
need to make my own small text batches to see what works best. I was
just hoping to find a starting point using weight measurements.
I just still find it remarkable that someone hasn't, at some point in
time, started of with 100 lbs of dry clay mix and then taken 5, 10, 15
or 20 rolls of toilet paper to mix in with the clay and said to
themselves, "Gee, I wonder how much this roll of toilet paper weighs?"
Thanks for the reply. I'm still hoping someone might share a dry weight
formula if they have one.
Kim
On Apr 29, 2005, at 7:37 PM, brian wrote:
> On 29/4/05 you wrote ....
>> I have seen many formulas for making paper clay
>> by wet mix volumes. I just find it interesting (exasperating:)) that
>> so
>> far all of them come down to an "eyeball" measurement
>
> The cellulose is an additive.
> It is not an integral part of the clay body.
> Merely a temporary material that helps the clay perform in a totally
> unique way
> Some people add it by wedging into the plastic clay but to ensure
> that true bonding of the fibers and the clay platelets wet mixing is
> probably the best
> .
> Like other additives such as grog or stains this becomes a purely
> personal decision based on your working methods.
> It can be a refreshing and imprecise activity amongst a sometimes
> "exacting" craft
>
> you might find this interesting reading.
> http://www.gartside.info/paperclayintro.htm
>
> Brian
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