Mixing Instructions for
Laguna Dry Raku Glazes
Because Laguna Dry Raku Glazes contain no suspenders or gums,
additions may be made to improve workability as follows:
For DIPPING or SPRAYING - Bentonite
is added to help keep the glaze in suspension and to increase drying time.
(Note: Keep Bentonite under 2.5% of Dry Glaze weight: too
much will cause excessive shrinkage and cracking of the glaze surface.)
For BRUSHING - CMC and Bentonite
are added. CMC acts as a binder and allows the glaze to flow
smoothly. (To add CMC: dissolve 1-2 Tb. in 1 gallon warm water and allow
to sit overnight. Substitute the resulting CMC Solution for 1/3
of the recommended amount of water in your formula.)
Use the chart at right as a
guide to determine how much CMC Solution and/or Bentonite to
use. Testing will be necessary to determine
the exact formula to suit your conditions.
|
TO MIX:
1. Wear a mask & gloves
2. Blend Bentonite into Dry
Glaze.
3. Measure water or water +
CMC Solution into a clean container.
4. Add dry material slowly into
water, stirring continuously. Scrape
sides and bottom of container frequently and mix thoroughly.
5. Screen through an 80-100 mesh
sieve. (Use at least a 100 mesh
sieve for Spraying Glaze).
For
Each 1 Lb.
of Dry Glaze
Measure Approximately: |
| DIPPING |
Water:
11 oz. |
| Bentonite:
.5 to 2 gms. |
| SPRAYING |
Water:
8 oz. |
| Bentonite:
1.5 to 3.5 gms. |
| BRUSHING |
Water:
5 oz. |
| CMC
Solution: 2 oz. |
| Bentonite:
4.5 to 8 gms. |
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