Bill Merrill on sun 4 jul 10
A very simple cone pack mixture is Kaolin and silica sand, about =3DBD & =
=3D
=3DBD , plus enough water to make the mix stick together. This mix is very =
=3D
porous and can be used immediately after making them I roll out a coil =3D
about an 1' =3DBC in diameter, flatten it with my hand until it's about a =
=3D
=3DBD' THICK. The coil is longer than I need. I put a indention at the =
=3D
start of the flattened coil, so cone 016 melts in to the cupped shape. =3D
Other cones are pressed into the flattened coil. I put a grove on each =3D
side of the flattened coil so other early melting cones do not flow onto =
=3D
the shelf. When the cones are in place, I cut off excess cone pack =3D
material with a sharp spatula used on its sharp edge. I usually make a =3D
couple of dozen of cone packs for the lower temp cones and the same for =
=3D
the higher melting cones. Getting cones in place , they should be at a =3D
slight slant, at 7 degrees according to the cone manufacturers.=3D20
Bill Merrill on sat 26 may 12
Somehow I missed the question about cone packs exploding. A simple way =3D
to avoid that is to mix =3DBD silica sand and =3DBD EPK. If you add too =
=3D
much water simply add some more EPK. Make the mixture to a clay =3D
consistency and you won't have your cone packs explode, the mix is very =3D
open and can be used immediately. I have used this mix since 1966 and =3D
have never had one explode.
Bill Merrill
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