Daphne Vega on wed 23 apr 08
I know I read about this in the archives, some good specific info in them.
If I remember correctly you want more absorption than what is normally
desired, I want to say 3%. It has to do with open cells that can allow any
moisture that gets in to swell as it freezes witthout bursting the clay
apart. Any more open clay body, whether from paper of fibers is what works
best. That seemed contrary to what you would think you want in a cold
environment or that you would ever even put clay outdoors, but often the
decorations on the surfaces of old buldings are clay (and exposed to
extreme temps in summer and winter) and 100yrs later they still look
great. Look up the artist that did the tile installations in NYC subways a
few years back, I remember reading an article that talked about her clay
and how she determined what could handle the extremes in weather.
Hope this helps-
Daphne
Myrna on wed 23 apr 08
Hello,
I'm trying to find out if tiles made with paperclay are more resistant than the ones made with regular clay, including for outside... also I'm interested in making rainchains: which material would be the best for such a stressful 'job' (paper clay?)
Thank you!
Myrna Figueiredo
Ron Roy on wed 23 apr 08
Paper clay will absorb water - would they freeze?
RR
>Hello,
>I'm trying to find out if tiles made with paperclay are more resistant
>than the ones made with regular clay, including for outside... also I'm
>interested in making rainchains: which material would be the best for such
>a stressful 'job' (paper clay?)
>
>Thank you!
>Myrna Figueiredo
Ron Roy
15084 Little Lake Road
Brighton, Ontario
Canada
K0K 1H0
Antoinette Cullen on wed 23 apr 08
I work quite a bit with paperclay, but it has it's limitations. I would nev=
er use it for ware that would be exposed to temperature (weather or cooking=
/refrigeration) because it is a more porus finished piece than traditional =
claybodies. I use it for decorative tiles since you do not have warping dur=
ing drying as you do with traditional clay bodies and I create decorative v=
essels - again, would not be exposed to extreme temperatures, just eye cand=
y work.
> Date: Wed, 23 Apr 2008 14:24:26 -0400> From: myrnastudio@AOL.COM> Subject=
: Tiles and Paperclay> To: CLAYART@LSV.CERAMICS.ORG> > Hello,> I'm trying t=
o find out if tiles made with paperclay are more resistant than the ones ma=
de with regular clay, including for outside... also I'm interested in makin=
g rainchains: which material would be the best for such a stressful 'job' (=
paper clay?)> > Thank you!> Myrna Figueiredo> > ___________________________=
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Snail Scott on thu 24 apr 08
> Date: Wed, 23 Apr 2008 14:24:26 -0400
> From: Myrna
> I'm trying to find out if tiles made with paperclay are more resistant
> than the ones made with regular clay, including for outside...
Since the paper burns out, paperclay is actually slightly
weaker and more porous than non-paperclay after firing.
(How much weaker is determined by how much paper
was used.) The greater strength of paperclay is ONLY
while it is green, not after firing!
-Snail
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