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Spectrum Raku Glazes

Clay-King.com offers Spectrum Raku glazes at discount prices!

Spectrum Raku glazes were developed for firing in either electric or gas kilns. Eleven of the Raku glazes are lead-free and non-toxic (850,851,854,856,871,872,873,874,875,877,878). All of the rest are lead-free, but are over the threshold limit for copper and are therefore not non-toxic in the liquid state. They are intended for brushing application, however, they can also be poured or dipped on pieces, although they should probably be thinned with a little water for this type of application.
Due to the many variables involved in Raku firing, particularly during the reduction phase, the chip colors should be used as an approximation. Your results may vary greatly due to different firing conditions.
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850
Raku Clear
List $12.00 (Pint)
Our Price $9.60

851
Raku White
List $12.00 (Pint)
Our Price $9.60

852
Turquoise
List $17.00 (Pint)
Our Price $13.60

853
Cobalt Blue
List $17.00 (Pint)
Our Price $13.60

 

855
Emerald
List $15.00 (Pint)
Our Price $12.00

 

861
Metallic Flash
List $17.00 (Pint)
Our Price $13.60

 

 
862
Galaxy
List $17.00 (Pint)
Our Price $13.60

863
Nebula
List $21.00 (Pint)
Our Price $16.80

 

864
Sunspot
List $17.00 (Pint)
Our Price $13.60

865
Mars
List $17.00 (Pint)
Our Price $13.60

866
Deep Space
List $15.00 (Pint)
Our Price $12.00

870
Star Night
List $23.00 (Pint)
Our Price $18.40

871
Raku Yellow
List $15.00 (Pint)
Our Price $12.00

872
Raku Orange
List $15.00 (Pint)
Our Price $12.00

873
Raku Red
List $29.00 (Pint)
Our Price $23.20

 

874
Lime
List $21.00 (Pint)
Our Price $16.80

875
Algae Bloom
List $21.00 (Pint)
Our Price $16.80

878
Cosmic Copper
List $23.00 (Pint)
Our Price $18.40

880
Armadillo
List $17.00 (Pint)
Our Price $13.60

881
Oxblood
List $23.00 (Pint)
Our Price $18.40

882
Orchid Pink
List $17.00 (Pint)
Our Price $13.60

883
Amethyst
List $17.00 (Pint)
Our Price $13.60

884
Aqua
List $15.00 (Pint)
Our Price $12.00

885
Blue Topaz
List $15.00 (Pint)
Our Price $12.00

886
Lapis
List $15.00 (Pint)
Our Price $12.00

887
Neptune
List $15.00 (Pint)
Our Price $12.00

888
Cassiopea
List $21.00 (Pint)
Our Price $16.80

889
Andromeda
List $21.00 (Pint)
Our Price $16.80

890
Chimera
List $21.00 (Pint)
Our Price $16.80

891
Northern Lights
List $15.00 (Pint)
Our Price $12.00

DISCONTINUED COLORS- QUANTITIES ARE LIMITED
856
Muddy Waters
List $16.00 (Pint)
Our Price $12.80

860
Flash
List $14.00 (Pint)
Our Price $11.05

RAKU FIRING
Raku glazes can be fired anywhere from 1600 F up to cone 06 (1850 F) in either an electric or gas kiln. We recommend firing 850 to 856 and 868 to 879 to a peak of 1700 - 1750 F and 860 to 866 to a peak of 1600 - 1650 F. They should be allowed to cool in the kiln to 1600 F. Different combinations of peak temp and reduction starting temp will produce different results. While still red hot they should be transferred as quickly as possible into a reduction bin (typically a lidded metal garbage can or small metal container that has been lined with organic material, such as newspaper and/or sawdust, etc.). As soon as the pieces are in the bin the lid should be put on to keep oxygen from entering the container, in order to develop the reduction atmosphere. The pieces should be allowed to cool in the bin for at least 20 minutes.

FIRING TIPS

  • Try to size the reduction bin to the size of the piece.

  • Establish a good seal to the reduction bin so that air is not entering and smoke is not leaving the bin

  • Position the organic material ( newspaper, sawdust, etc.) and the piece so that the flames can get all around the piece.

  • Different organic materials may produce very different results, for example a glaze reduced in newspaper could be a beautiful blue color and the same glaze reduced in sawdust could have a metallic copper appearance.

  • Pieces should be cleaned immediately with water and a hard bristle brush. After cleaning, warm the pieces in the kiln to evaporate any water from the piece. This helps to set the colors more permanently.

Attention: Colors shown are the most accurate representations available. However, due to the limitations of web and monitor color display, we cannot guarantee that the colors will exactly match the final results.

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