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GLAZE INDEX (alphabetical
list of all glazes)
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Laguna Dry Raku
The following Laguna Dry Glazes were formulated
for Raku. Results will vary greatly depending on firing
conditions, clay body, thickness of glaze, fuel, etc.
All glazes
are lead free. We now stock all the Raku Glazes.
Mixing instructions from Laguna;
Establishing the correct water to
dry material ratio in Raku glazes can be challenging, but by utilizing a
process called slaking, the challenge can be met. Slaking simply
means mixing the glaze's dry materials in a bucket with enough water to
allow all the dry particles to achieve maximum absorption.
Follow
these steps:
 | Slake your Raku glaze approximately 24 hours, long enough
that the glaze settles to the bottom of the bucket and the
"unabsorbed water" is clear, not cloudy. |
| At this point,
remove most of the clear water leaving 1/4" to 1/2" on top of
the glaze. Mix thoroughly and allow glaze to sit for another 24
hours. |
| After the second 24 hour settling period, mix the glaze
thoroughly to a consistency a little thicker than your final use
consistency. To achieve this desired consistency, you may need to
add a small amount of water but always stir the mix thoroughly prior to
adding any water. |
| Strain the mix through a 30 to 40 mesh sieve
into another bucket, then strain again back into the original
bucket. You should be able to feel the glaze thin out as you mix
it because of the thixotropic characteristics of the Gerstley Borate
included in most Raku glazes.
Thixtropy is "the property exhibited
by certain gels of becoming liquid when stirred or shaken".
This makes it important to always stir Raku glazes thoroughly before
considering thinning with water. |
It is not unusual for a Raku
glaze to become slightly lumpy even after being strained and mixed.
Some ceramicists prefer that their Raku glazes be thicker than other
types of glazes. We recommend running several tests to determine
your individual consistency preference.
Read
more about these glazes! Comments from
other users, or submit your own.
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