Jackie Shaw on thu 9 feb 06
hi
I have begun working with a porcelain pouring slip. This has been a
challenge, but I finally bit the bullet and bought a hydrometer. There =
is
one weird problem that I am experiencing. When I am pouring the slip =
out of
the mold after it has developed the desired thickness I have a dificult
time getting the slip to slide out, i have to insert a stick into the
opening, only then will it start to flow. When I open the mold the next =
day
the round shape that I am trying to achieve has a dented in side.
Someone thought that the slip and mold were building up a suction. Can
anyone help me with this?
christine
RE: Porcelain Slip Problem=20
Date: Wed, 8 Feb 2006 20:16:25 -0800
From: CHRISTINE LAGINESS
Subject: pouring slip
Christine,
Your "someone" is right. You are getting the result of a vacuum in your
mold.
Instead of a stick, use a straw to blow air into the mold as the slip is
flowing out. This will prevent the vacuum from forming and sucking the =
wall
of the porclain object away from the mold causing your dent.
Jackieshaw@myactv.net
-----Original Message-----
From: Clayart [mailto:CLAYART@LSV.CERAMICS.ORG] On Behalf Of Automatic
digest processor
Sent: Thursday, February 09, 2006 12:00 AM
To: Recipients of CLAYART digests
Subject: CLAYART Digest - 7 Feb 2006 to 8 Feb 2006 (#2006-37)
| |
|
