Gwyn Ace on fri 18 jan 02
It is pretty obvious that a precise definition of what is a slip and =
what is an engobe...does not exist..... and does it really matter.
A general survey of all my books indicates that the two words are more =
or less synonymous.... so let's not get complicated.
A Rose By Any Other Name...............
Call it whatever you like.... and slosh it...dip it..,trail it.. scratch =
through it ...comb it..pour it..spray it...and enjoy making your =
pots.............GWYN
Alisa og Claus Clausen on fri 18 jan 02
Dear Gwen and Clayart,
It would be great if slips and engobes could just behave any which way you
make them and apply them. But that is not so. I spent over a year,
getting great advice from Clayart, most especially Tom Buck, to get that
"simple" layer in between the clay and glaze to give a good adhesion to the
pot. If the slip for wet or greenware is wrong, it might flake, peel and
otherwise do things you wish it did not. To avoid this, or rather, to
better ensure a good adhesion, make your slip or slip with additives
(oxides, opacifiers, stains, etc.) mostly from your own clay body i.e. the
same clay body the pot is made from.
Slips and Engobes are not synonymous.
From Tom, I have learned that there are slips with additives and
engobes. On the other hand, if you insist that is does not matter what you
call it, it doesn't, as long as the people you are addressing are using the
same word to mean the same thing you are. Like you could call it Mip and
Mop, but the difference is understood. But there would still be a
difference between the two. Need to have the same references.
I use slips with additives now and very rarely engobes. The reason is that
I scratch through the slip, into the pot's surface. Engobes are to be used
for either bone dry greenware or bisqued ware. They need a less clay than
a slip and more flux, such as a spar, to get them to fuse to the clay.
This is a very short version of the technical differences. But it has
been enough of an understanding of the differences, the important
differences, to get that layer to stay where it should.
Best regards,
Alisa in Denmark
Jim Tabor on fri 18 jan 02
I use materials with a significant clay content as slip to assemble parts, casting slip for casting in molds, for thin tiles, and saturated organic materials.
Other slips contain colorants and fluxes to decorate as underglaze (engobe), viterous engobes (usually without glaze on them, and decorating slips to apply on
glaze. I try to convey the differences and appropriate applications to my students.
Jim Tabor
Gwyn Ace wrote:
> It is pretty obvious that a precise definition of what is a slip and what is an engobe...does not exist..... and does it really matter.
> A general survey of all my books indicates that the two words are more or less synonymous.... so let's not get complicated.
> A Rose By Any Other Name...............
> Call it whatever you like.... and slosh it...dip it..,trail it.. scratch through it ...comb it..pour it..spray it...and enjoy making your pots.............GWYN
>
> ______________________________________________________________________________
> 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.
Nancy Silver on sun 20 jan 02
thanks your clarification of the differences between engobe and slip helped
a lot. i'm very new to clay and more so to glazes, slip and engobes.
nancy s in cincinnati
----- Original Message -----
From: "Alisa og Claus Clausen"
To:
Sent: Friday, January 18, 2002 3:47 PM
Subject: Re: engobe/slip/what's in a name ????
> Dear Gwen and Clayart,
> It would be great if slips and engobes could just behave any which way you
> make them and apply them. But that is not so. I spent over a year,
> getting great advice from Clayart, most especially Tom Buck, to get that
> "simple" layer in between the clay and glaze to give a good adhesion to
the
> pot. If the slip for wet or greenware is wrong, it might flake, peel and
> otherwise do things you wish it did not. To avoid this, or rather, to
> better ensure a good adhesion, make your slip or slip with additives
> (oxides, opacifiers, stains, etc.) mostly from your own clay body i.e. the
> same clay body the pot is made from.
>
> Slips and Engobes are not synonymous.
>
> From Tom, I have learned that there are slips with additives and
> engobes. On the other hand, if you insist that is does not matter what
you
> call it, it doesn't, as long as the people you are addressing are using
the
> same word to mean the same thing you are. Like you could call it Mip and
> Mop, but the difference is understood. But there would still be a
> difference between the two. Need to have the same references.
>
>
> I use slips with additives now and very rarely engobes. The reason is
that
> I scratch through the slip, into the pot's surface. Engobes are to be
used
> for either bone dry greenware or bisqued ware. They need a less clay than
> a slip and more flux, such as a spar, to get them to fuse to the clay.
>
> This is a very short version of the technical differences. But it has
> been enough of an understanding of the differences, the important
> differences, to get that layer to stay where it should.
>
> Best regards,
> Alisa in Denmark
>
>
____________________________________________________________________________
__
> 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.
>
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