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lindseend oil and unfired clay

updated sat 3 apr 04

 

Marie Gibbons on thu 1 apr 04


does anyone know of this .... soaking unfired clay in lindseed oil to get a
strong piece that isn't fired?
marie gibbons
www.mariegibbons.com

Wes Rolley on thu 1 apr 04


At 08:23 AM 4/1/04 -0500, you wrote:

>does anyone know of this .... soaking unfired clay in lindseed oil to get a
>strong piece that isn't fired?

Marie, I never heard of this, but I do have several pieces by a Cherokee
Indian Potter who used a traditional Cherokee method of sealing a low fired
pot. She dipped the pot into another filled with boiling water and pine
pitch. The pitch was carried into the porous clay, sealing it. It also
gave the surface a wonderful patina implying great age.




"Art and thought. That's what lasts. That's what continues to feed
people and give them an idea of something better."
-- Susan Sontag

Wesley C. Rolley
17211 Quail Court
Morgan Hill, CA 95037
(408)778-3024

John on thu 1 apr 04


----- Original Message -----
From: "Marie Gibbons"
To:
Sent: Thursday, April 01, 2004 8:23 AM
Subject: lindseend oil and unfired clay


> does anyone know of this .... soaking unfired clay in lindseed oil to get
a
> strong piece that isn't fired?
> marie gibbons
> www.mariegibbons.com
>
Marie,
Pure linseed oil will turn rancid and stink and will spoil the pot.

Polymerized Tung oil is what you should use. It also hardens to a great
finish.

It's used a lot in woodworking as a finish.....beautiful

But don't fire it after this is applied, it might just blow up
unless of course your into making bombs. :)))

Remember, all oil burns, soaked into porous body and
it has now where to expand, in a kiln it might just go BOOM

Look up Polymerized Tung oil on the web...great stuff
Lindseed oil is cheep and can remain tacky

John
basically it not a good finish

Snail Scott on thu 1 apr 04


At 07:17 AM 4/1/04 -0800, Marie wrote:
>>does anyone know of this .... soaking unfired clay in lindseed oil to get a
>>strong piece that isn't fired?

>At 08:23 AM 4/1/04 -0500, Susan wrote:
>...I do have several pieces by a Cherokee
>Indian Potter...dipped the pot into another filled with boiling water and
pine
>pitch...


I once met an Ecuadoran Indian potter, who showed some of
her work. It was _very_ low-fired, though the body was
actually sintered to some degree, not greenware. After
decorating and firing, she had coated each pot with some
sort of local (Ecuadoran) tree sap to seal it, while the
pot was warm. The resulting appearance was much like
shellac. Such pottery was used 'in the old days' to eat
from and (I think) cook in. Now, they sell the pottery
and buy commercial ware for food.

-Snail

Gary Elfring on fri 2 apr 04


MG> does anyone know of this .... soaking unfired clay in lindseed oil to get a
MG> strong piece that isn't fired?

Boiled Linseed oil (not standard linseed oil!) is used as a finish for
both wood and pottery. In wood finishing it is frequently used on
cherry and walnut. It brings out the natural aged wood color
immediately and doesn't let it change much over time. (Natural cherry
starts out looking like pine and eventually turns dark red-brown
without boiled linseed oil. With the oil, the wood starts out deep red
and stays that way.)

Boiled linseed oil is rubbed in the surface and left to oxidize in the
air. Rags used in this process must be stored in a metal container or
spread flat. (They get hot and will spontaneously combust.)

Boiled linseed oil can be used on low fired pottery, but I have never
heard of it being used on raw clay.



--
Best regards,
Gary

Sandy Henderson on fri 2 apr 04


I have done this successfully with small pieces that have lasted pretty well for over
20 years (not food safe!).

Sandy Henderson


> Date: Thu, 1 Apr 2004 07:17:15 -0800
> From: Wes Rolley
> Subject: Re: lindseend oil and unfired clay
>
> At 08:23 AM 4/1/04 -0500, you wrote:
>
> >does anyone know of this .... soaking unfired clay in lindseed oil to
> >get a strong piece that isn't fired?
>
> Marie, I never heard of this, but I do have several pieces by a
> Cherokee Indian Potter who used a traditional Cherokee method of
> sealing a low fired pot. She dipped the pot into another filled with
> boiling water and pine pitch. The pitch was carried into the porous
> clay, sealing it. It also gave the surface a wonderful patina
> implying great age.