Jump to content


Photo
- - - - -

Paper Clay Ratios


  • Please log in to reply
15 replies to this topic

#1 badmintonsyd

badmintonsyd

    Newbie

  • Members
  • Pip
  • 3 posts
  • LocationNevada

Posted 25 March 2013 - 05:13 PM

I've been using my own porcelain paper clay recipe for the past year or so. I love how it looks once it's fired, but I'm having issues working with it wet sometimes. I have a feeling it might be the ratio for paper to clay that I've been using (I think I'm working with 30-40% paper). Anyone have any advice for me? Should I try another kind of fiber? ( For the paper, I just use single-ply toilet paper)

#2 Marcia Selsor

Marcia Selsor

    Professor Emerita, Montana State University-Billings

  • Members
  • PipPipPip
  • 4,003 posts
  • Locationwhere Texas, Matamoros, Rio Grande and Gulf of Mexico come together.

Posted 25 March 2013 - 05:43 PM

I've been using my own porcelain paper clay recipe for the past year or so. I love how it looks once it's fired, but I'm having issues working with it wet sometimes. I have a feeling it might be the ratio for paper to clay that I've been using (I think I'm working with 30-40% paper). Anyone have any advice for me? Should I try another kind of fiber? ( For the paper, I just use single-ply toilet paper)


That seems like a high % of paper. My understanding is a maximum of 25%. Use anywhere from 15-25%
Marcia

#3 TypicalGirl

TypicalGirl

    Advanced Member

  • Members
  • PipPipPip
  • 97 posts
  • LocationAngels Camp, Ca

Posted 25 March 2013 - 06:39 PM

I typically use 10% - 15% ratio.
Cathi Newlin, Angels Camp, Ca
box49@caltel.com
http://www.CNewlin.com

#4 Marcia Selsor

Marcia Selsor

    Professor Emerita, Montana State University-Billings

  • Members
  • PipPipPip
  • 4,003 posts
  • Locationwhere Texas, Matamoros, Rio Grande and Gulf of Mexico come together.

Posted 25 March 2013 - 08:03 PM

I typically use 10% - 15% ratio.

I use about 15%.
Don't you think 30-40% would make the clay body kind of difficult?
Marcia




#5 clay lover

clay lover

    Advanced Member

  • Members
  • PipPipPip
  • 907 posts
  • LocationSoutheast

Posted 26 March 2013 - 06:45 AM

How are you guys measuring the paper, and is it wet clay by weight? I have only used paper clay for joining slip and then just threw a few sheets of toilet paper in a blender made a slurry, and then added bits of wet clay until it 'looked right'.

Is there a more accurate way to figure the ratio. Can't imaging weighing toilet paper, may be too early in the AM for me to grasp this, need more coffee.

#6 badmintonsyd

badmintonsyd

    Newbie

  • Members
  • Pip
  • 3 posts
  • LocationNevada

Posted 26 March 2013 - 08:14 AM

How are you guys measuring the paper, and is it wet clay by weight? I have only used paper clay for joining slip and then just threw a few sheets of toilet paper in a blender made a slurry, and then added bits of wet clay until it 'looked right'.

Is there a more accurate way to figure the ratio. Can't imaging weighing toilet paper, may be too early in the AM for me to grasp this, need more coffee.



How I did it was I made a paper slurry, then dried it so I had paper "pellets" and then measured from there

#7 badmintonsyd

badmintonsyd

    Newbie

  • Members
  • Pip
  • 3 posts
  • LocationNevada

Posted 26 March 2013 - 08:18 AM


I've been using my own porcelain paper clay recipe for the past year or so. I love how it looks once it's fired, but I'm having issues working with it wet sometimes. I have a feeling it might be the ratio for paper to clay that I've been using (I think I'm working with 30-40% paper). Anyone have any advice for me? Should I try another kind of fiber? ( For the paper, I just use single-ply toilet paper)


That seems like a high % of paper. My understanding is a maximum of 25%. Use anywhere from 15-25%
Marcia



I read in a book on paper clay that if you're wanting to sculpt with porcelain using paper clay then to use ~35% paper, but I'll try out a lesser % thank you

#8 TypicalGirl

TypicalGirl

    Advanced Member

  • Members
  • PipPipPip
  • 97 posts
  • LocationAngels Camp, Ca

Posted 26 March 2013 - 02:26 PM

Honestly, I just guess.
Porcelain paper clay is the only kind I mix myself, my stoneware is a commercially produced body that contains 10%-20% paper, depending on the body.
With the porcelain, I mix a slurry of toilet paper, water and bleach and then add it to the clay (which I've made into a slip).
No more than 20% paper, and its strong enough to withstand raku.



I've been using my own porcelain paper clay recipe for the past year or so. I love how it looks once it's fired, but I'm having issues working with it wet sometimes. I have a feeling it might be the ratio for paper to clay that I've been using (I think I'm working with 30-40% paper). Anyone have any advice for me? Should I try another kind of fiber? ( For the paper, I just use single-ply toilet paper)


That seems like a high % of paper. My understanding is a maximum of 25%. Use anywhere from 15-25%
Marcia



I read in a book on paper clay that if you're wanting to sculpt with porcelain using paper clay then to use ~35% paper, but I'll try out a lesser % thank you


Cathi Newlin, Angels Camp, Ca
box49@caltel.com
http://www.CNewlin.com

#9 Marcia Selsor

Marcia Selsor

    Professor Emerita, Montana State University-Billings

  • Members
  • PipPipPip
  • 4,003 posts
  • Locationwhere Texas, Matamoros, Rio Grande and Gulf of Mexico come together.

Posted 26 March 2013 - 02:41 PM

For patching I use a paste made in a blender with toilet paper or bits of paper from dried orange size paper that was made into pulp and strained. For working with paper clay I mix in a Soldner mixer and ad by dry volume.

Marcia

#10 Sandra Jimison

Sandra Jimison

    Member

  • Members
  • PipPip
  • 24 posts
  • LocationGlendale, SC

Posted 31 March 2013 - 06:40 AM

Where do you find paper clay commercially? I have never used paper clay, because the process seems to intimidate me, but from what I've read I know I should. If I could buy it, all the better. Sandra

Honestly, I just guess.
Porcelain paper clay is the only kind I mix myself, my stoneware is a commercially produced body that contains 10%-20% paper, depending on the body.
With the porcelain, I mix a slurry of toilet paper, water and bleach and then add it to the clay (which I've made into a slip).
No more than 20% paper, and its strong enough to withstand raku.




I've been using my own porcelain paper clay recipe for the past year or so. I love how it looks once it's fired, but I'm having issues working with it wet sometimes. I have a feeling it might be the ratio for paper to clay that I've been using (I think I'm working with 30-40% paper). Anyone have any advice for me? Should I try another kind of fiber? ( For the paper, I just use single-ply toilet paper)


That seems like a high % of paper. My understanding is a maximum of 25%. Use anywhere from 15-25%
Marcia



I read in a book on paper clay that if you're wanting to sculpt with porcelain using paper clay then to use ~35% paper, but I'll try out a lesser % thank you



#11 clay lover

clay lover

    Advanced Member

  • Members
  • PipPipPip
  • 907 posts
  • LocationSoutheast

Posted 31 March 2013 - 11:21 AM

For patching I use a paste made in a blender with toilet paper or bits of paper from dried orange size paper that was made into pulp and strained. For working with paper clay I mix in a Soldner mixer and ad by dry volume.

Marcia



Marcia, do you mean you strain the resulting slurry, the TP and clay combo, after it is blended? How fine are we talking about, I never thought of that. I will be up-grading my patching slip.

#12 bigDave

bigDave

    Advanced Member

  • Members
  • PipPipPip
  • 89 posts
  • LocationSo-Cal

Posted 31 March 2013 - 10:44 PM

Where do you find paper clay commercially? I have never used paper clay, because the process seems to intimidate me, but from what I


http://www.lagunacla...paper-clays.php

#13 Sandra Jimison

Sandra Jimison

    Member

  • Members
  • PipPip
  • 24 posts
  • LocationGlendale, SC

Posted 01 April 2013 - 06:10 AM


Where do you find paper clay commercially? I have never used paper clay, because the process seems to intimidate me, but from what I


http://www.lagunacla...paper-clays.php


Thanks BigDave. I thought paper clay was great for sculpture for two reasons. First being as stated in the clay descriptions, is low shrinkage, but second an incredibly smooth texture for good fine details like you naturally get with porcelain. The grog confuses me. On this same note, what is B mix?
Thanks for your patience.
SandraPosted Image

#14 Marcia Selsor

Marcia Selsor

    Professor Emerita, Montana State University-Billings

  • Members
  • PipPipPip
  • 4,003 posts
  • Locationwhere Texas, Matamoros, Rio Grande and Gulf of Mexico come together.

Posted 11 April 2013 - 08:53 PM


For patching I use a paste made in a blender with toilet paper or bits of paper from dried orange size paper that was made into pulp and strained. For working with paper clay I mix in a Soldner mixer and ad by dry volume.

Marcia



Marcia, do you mean you strain the resulting slurry, the TP and clay combo, after it is blended? How fine are we talking about, I never thought of that. I will be up-grading my patching slip.


In order to measure by volume, the paper slurry needs to be compressed. I strain it and get rid of the water and squeeze the remaining pulp into orange size lumps. Then, I can look at the dry volume and estimate 15%. For large quantities I am not using tp but paper linter.
Marcia

#15 bigDave

bigDave

    Advanced Member

  • Members
  • PipPipPip
  • 89 posts
  • LocationSo-Cal

Posted 14 April 2013 - 09:26 PM



Thanks BigDave. I thought paper clay was great for sculpture for two reasons. First being as stated in the clay descriptions, is low shrinkage, but second an incredibly smooth texture for good fine details like you naturally get with porcelain. The grog confuses me. On this same note, what is B mix?
Thanks for your patience.
SandraPosted Image


Yer Welcome...:rolleyes:src="http://ceramicartsda.../rolleyes.gif">

Id say you thought right..
.but after using mucho much of it

This Clay, doesn't attach incredibly well and isn't at all smooth..it is paper though...and commercial.... as requested...LOL

B-mix is the one right after A-mix...

I think

Attached Files



#16 Diana Ferreira

Diana Ferreira

    opinionated ignoramus

  • Members
  • PipPipPip
  • 186 posts
  • LocationCape Town, South Africa

Posted 16 April 2013 - 01:13 PM

I use 2 toilet rolls in a bucket of slip. Casted some really awesome and thin work with it. I was able to really break down the paper with my 'blender tool bit on the drill' and got a very smooth mix and a smooth slipcasted end-result.
Diana
www.dianaferreiraceramics.com
https://www.facebook...70824173&type=3




0 user(s) are reading this topic

0 members, 0 guests, 0 anonymous users