Michael Wendt on tue 25 may 04
Chris,
I was told this is a polyethylene oxide strand. Glycols are forms of
alcohols.
The cost for this stuff is way cheaper too... $12.80/quart or 1/4 the cost
of the product you have mentioned.
Still, it could be very similar.
Chris wrote:
"it is $28 for 500 ml and considering you only needs a few drops added to
your water 500 ml should last indefinitely.
For anyone interested in the technical info on PEGs here is Dow Chemicals
technical data
http://www.dow.com/webapps/lit/litorder.asp?filepath=polyglycols/pdfs/noreg/
118-01260.pdf&pdf=true
Hope that helps,
Chris Clyburn"
Regards,
Michael Wendt
Wendt Pottery
2729 Clearwater Ave
Lewiston, Idaho 83501
USA
wendtpot@lewiston.com
www.wendtpottery.com
Earl Krueger on tue 25 may 04
On Tuesday, May 25, 2004, at 12:09 US/Pacific, claybair wrote:
> Here's a site where it's $14.50 for 500ml
> http://shop2.chemassociates.com/PAS-peg.html
> Still looking for someplace in Seattle area......
Is this the same stuff that woodworkers use to keep
wood from checking (cracking)?
If so you might give your local woodworkers supply
store a call.
Crosscut Hardwoods, 1st Ave S. in Seattle might have it.
Earl K...
Bothell, WA, USA
Chris Clyburn on tue 25 may 04
Your substance sounds identical to Polyethylene Glycols (also known as
Carbowax, Dow Chemicals brand name). It is used in many substances and is
also used in ceramics industries.
"PEGs are widely used in the ceramics industry as plasticizers, binders and
carriers. PEGs are designed to easily and smoothly be distributed throughout
the ceramic mass, providing good internal and external lubrication and
improved green strength. They have low toxicity, good water solubility to
improve equipment cleanup, and smooth, clean burnout during firing
operations." http://www.dow.com/polyglycols/carbowax/app/ceramic.htm
I looked for a source for the substance last night and finnally found a
supplier who sells it in something other than 55 gal drums :-) I also
discovered that PEG 400 is best for clay (it ranges from PEG 100-PEG 8000,
with the number refering to its molecular weight.)
for anybody interested in this chemical (which is non toxic btw according to
the MSDS, it is sometimes used in medicines and food) the website I finallu
found to buy from is:
http://www.usbweb.com/category.asp?cat=bio&id=19957
it is $28 for 500 ml and considering you only needs a few drops added to
your water 500 ml should last indeffinately.
For anyone interested in the technical info on PEGs here is Dow Chemicals
technical data
http://www.dow.com/webapps/lit/litorder.asp?filepath=polyglycols/pdfs/noreg/118-01260.pdf&pdf=true
Hope that helps,
Chris Clyburn
On Mon, 24 May 2004 11:49:23 -0700, Michael Wendt wrote:
As it was explained to
>me by the company representative (it is made
>here in Lewiston, Idaho), it is the same composition
>polyethylene used to make plastic milk jugs.
>The local paper mill uses it to make products.
>It consists of long strand molecules that are only a few
>atoms across yet very long. They tangle and collect
>clay like a sponge causing huge amounts of slip to form
>on the surface of the pot almost instantly.
>Since they are chemically inert, they do not deflocc
>the clay and they burn out without a trace.
>They form a very slippery layer over the surface of the
>pot so you don't need to add a bunch of water to
>maintain lubrication. They also see to act like paper
>fiber (but invisible and much smoother) in that the surface
>is strengthened and reinforced by their presence.
claybair on tue 25 may 04
Here's a site where it's $14.50 for 500ml
http://shop2.chemassociates.com/PAS-peg.html
Still looking for someplace in Seattle area......
Gayle Bair
Bainbridge Island, WA
http://claybair.com
-----Original Message-----
From: Chris Clyburn
Your substance sounds identical to Polyethylene Glycols (also known as
Carbowax, Dow Chemicals brand name). It is used in many substances and is
also used in ceramics industries.
"PEGs are widely used in the ceramics industry as plasticizers, binders and
carriers. PEGs are designed to easily and smoothly be distributed throughout
the ceramic mass, providing good internal and external lubrication and
improved green strength. They have low toxicity, good water solubility to
improve equipment cleanup, and smooth, clean burnout during firing
operations." http://www.dow.com/polyglycols/carbowax/app/ceramic.htm
I looked for a source for the substance last night and finnally found a
supplier who sells it in something other than 55 gal drums :-) I also
discovered that PEG 400 is best for clay (it ranges from PEG 100-PEG 8000,
with the number refering to its molecular weight.)
for anybody interested in this chemical (which is non toxic btw according to
the MSDS, it is sometimes used in medicines and food) the website I finallu
found to buy from is:
http://www.usbweb.com/category.asp?cat=bio&id=19957
it is $28 for 500 ml and considering you only needs a few drops added to
your water 500 ml should last indeffinately.
snip><
Robert Huskey on wed 26 may 04
PEG is available in auto parts stores as pet safe antifreeze . It may be
diluted some with water ; I don't know . But one can experiment as the price
is certainly right . I seem to remember paying $8.00 / gal .
Bob Huskey --- Tallahassee , Fl . USA
> "PEGs are widely used in the ceramics industry as plasticizers, binders
and
> carriers. PEGs are designed to easily and smoothly be distributed
throughout
> the ceramic mass, providing good internal and external lubrication and
> improved green strength. They have low toxicity, good water solubility to
> improve equipment cleanup, and smooth, clean burnout during firing
> operations." http://www.dow.com/polyglycols/carbowax/app/ceramic.htm
>
> I looked for a source for the substance last night and finnally found a
> supplier who sells it in something other than 55 gal drums :-) I also
> discovered that PEG 400 is best for clay (it ranges from PEG 100-PEG 8000,
| |
|
