JIMV062@AOL.COM on tue 6 jun 00
I believe that tung oil is a poison. I know the seed pods that the oil is
made from is...... be carful......Jim
Veena Raghavan on tue 6 jun 00
Like Kurt, I too have read more than once that Tung oil is used to
waterproof raku. The way it worked, from what I recall, is that you rub the
oil into the inside of the pot, this way the outside is not affected. The
oil hardens and stops the clay from being porous. As Kurt has indicated,
this must be Tung oil and not polish or finishes that include Tung oil.
Veena
Cindy Strnad on tue 6 jun 00
I don't know how this would work for Raku, but I use Future acrylic floor
wax on the inside of pit-fired vessels if I want to use them for flower
vases. I've never had one leak, but I haven't left the water in for weeks
and weeks, either. If you use too much of it, the wax can make the surface
shiny, though.
Cindy Strnad
earthenv@gwtc.net
Earthen Vessels Pottery
RR 1, Box 51
Custer, SD 57730
Khaimraj Seepersad on wed 7 jun 00
Hello To All ,
this may sound idiotic , but if you found Cold Pressed Linseed oil
used for salad dressing , it would dry like tung oil . The linseed
oil used for eating would be non - toxic , and would give a hard
coat , almost as hard as tung oil . [ dries in one or two days ]
I just finished extracting some Linseed oil from Linseed , for use
in oil painting ------ tasted quite pleasant as a salad oil .
I do this for walnut oil as well , but the coat would not dry as hard
as a linseed oil coat , but on a canvas / panel , it's very usable.
Khaimraj
-----Original Message-----
From: JIMV062@AOL.COM
To: CLAYART@LSV.CERAMICS.ORG
Date: 07 June 2000 15:20
Subject: Re: Raku-waterproof w/Tung Oil
>I believe that tung oil is a poison. I know the seed pods that the oil is
>made from is...... be carful......Jim
>
>___________________________________________________________________________
___
>Send postings to clayart@lsv.ceramics.org
>
>You may look at the archives for the list or change your subscription
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melpots@pclink.com.
>
Tom Buck on thu 8 jun 00
Anji, others:
When a varnish maker uses the term "drying oil" he refers to a
liquid at room temperature that will change into a thermo-setting polymer
(a "resin") by either long exposure to the air or by gentle heating in a
varnish vat. Tung Oil is such a drying oil used for varnishes of
top-quality.
There was mention of silicones being used in Japan to seal pots
(eg, vases) not fully vitrfied.. Silicone stands for a "large group of
organosiloxane polymers based on a structure of alternate silicon and
oxygen atoms with various organic radicals attached to the silicon..."
This large group can exist as liquids, semisolids, and solids depending on
the degree of polymerization (ie, how many atoms are linked in a long
chain).
Tung Oil is a simpler molecule, and it is a very fluid at room
temperature, moreso than most silicones. It is also a lot cheaper. The
difference between the TO sealing and the silcone sealing, is that TO will
penetrate more easily into the pores of the pot and then slowly polymerize
into a solid hard resin, whereas the silcone likely will be a bigger
molecule and not be able to get deep into the pore of the pot and
therefore its sealant properties will depend on its binding to the inside
surface of the fired pot.
Once fully cured the TO will be like varnish and be inert to
water, so no harm will come to the flowers in the pot.
I'm with Kurt...this is a good way to go. But be patient, the TO
takes sometime to cure.
BFN. Peace. Tom B.
Tom Buck
) tel: 905-389-2339 (westend Lake Ontario, province of
Ontario, Canada). mailing address: 373 East 43rd Street,
Hamilton ON L8T 3E1 Canada
On Thu, 8 Jun 2000, Anji Henderson wrote:
> Ummm would it be hazzardous to flowers??
>
> Anji
>
> --- JIMV062@AOL.COM wrote:
> > I believe that tung oil is a poison. I know the
> > seed pods that the oil is
> > made from is...... be carful......Jim
> >
> >
> ______________________________________________________________________________
> > 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.
>
>
> __________________________________________________
> Do You Yahoo!?
> Yahoo! Photos -- now, 100 FREE prints!
> http://photos.yahoo.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.
>
Anji Henderson on thu 8 jun 00
Ummm would it be hazzardous to flowers??
Anji
--- JIMV062@AOL.COM wrote:
> I believe that tung oil is a poison. I know the
> seed pods that the oil is
> made from is...... be carful......Jim
>
>
______________________________________________________________________________
> 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.
__________________________________________________
Do You Yahoo!?
Yahoo! Photos -- now, 100 FREE prints!
http://photos.yahoo.com
Heidrun Schmid on sun 11 jun 00
Where do you get Tung Oil? I will be visiting a friend in the US early next month and
am thinking, maybe I should try to get this oil and try it on my small Raku pieces.
Maybe I can get it here, but do not know the name of it in Thai. Do I need large
quantities?
Heidrun in Bangkok
Tom Buck wrote:
> Anji, others:
> When a varnish maker uses the term "drying oil" he refers to a
> liquid at room temperature that will change into a thermo-setting polymer
> (a "resin") by either long exposure to the air or by gentle heating in a
> varnish vat. Tung Oil is such a drying oil used for varnishes of
> top-quality.
> There was mention of silicones being used in Japan to seal pots
> (eg, vases) not fully vitrfied.. Silicone stands for a "large group of
> organosiloxane polymers based on a structure of alternate silicon and
> oxygen atoms with various organic radicals attached to the silicon..."
> This large group can exist as liquids, semisolids, and solids depending on
> the degree of polymerization (ie, how many atoms are linked in a long
> chain).
> Tung Oil is a simpler molecule, and it is a very fluid at room
> temperature, moreso than most silicones. It is also a lot cheaper. The
> difference between the TO sealing and the silcone sealing, is that TO will
> penetrate more easily into the pores of the pot and then slowly polymerize
> into a solid hard resin, whereas the silcone likely will be a bigger
> molecule and not be able to get deep into the pore of the pot and
> therefore its sealant properties will depend on its binding to the inside
> surface of the fired pot.
> Once fully cured the TO will be like varnish and be inert to
> water, so no harm will come to the flowers in the pot.
> I'm with Kurt...this is a good way to go. But be patient, the TO
> takes sometime to cure.
> BFN. Peace. Tom B.
>
> Tom Buck
> ) tel: 905-389-2339 (westend Lake Ontario, province of
> Ontario, Canada). mailing address: 373 East 43rd Street,
> Hamilton ON L8T 3E1 Canada
>
> On Thu, 8 Jun 2000, Anji Henderson wrote:
>
> > Ummm would it be hazzardous to flowers??
> >
> > Anji
> >
> > --- JIMV062@AOL.COM wrote:
> > > I believe that tung oil is a poison. I know the
> > > seed pods that the oil is
> > > made from is...... be carful......Jim
> > >
> > >
> > ______________________________________________________________________________
> > > 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.
> >
> >
> > __________________________________________________
> > Do You Yahoo!?
> > Yahoo! Photos -- now, 100 FREE prints!
> > http://photos.yahoo.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.
> >
>
> ______________________________________________________________________________
> 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.
Veena Raghavan on sun 11 jun 00
Message text written by Ceramic Arts Discussion List
>Where do you get Tung Oil?<
Hi Heidrun,
I know that pure Tung oil is available from woodworking supply mail
order companies. Unfortunately, I am in the middle of packing up 25 years
of our lives to move, so do not have any of the catalogs on hand. Maybe
someone else could help with this information. Hope so. Good luck and have
a great visit when you come to the States.
All the best.
Veena
Veena Raghavan
75124.2520@compuserve.com
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