Spectrum 959 Tarnished Silver From £5.27
Spectrum has developed this exciting range of earthenware (cone 06/04 - 1060°C) glazes that give the appearance of high fired stoneware glazes.
The following effects can be achieved:
901-906 - Are glossy, semi-transparent two-tone glazes that produce a beautiful effect when used on pieces with some detail.
907, 927, 928, 953, 955, 957, 958 - Are semi-gloss glazes that break up and give one colour in areas where they are thick and another colour in areas where they are thinner.
908-926 - Have a satin finish and will all break up to varying degrees.
929, 932 to 935, 949-952, 954, 956 - Are semi-gloss, speckled surfaces.
930, 931, 936-943, 945-948, 961, 962 - Are satin finished speckled surfaces.
959, 960 - Give the best metallic finish when applied thicker.
944 - Is a solid satin taupe finish.
Spectrum has included 900 Clear in this range which can be used, for example, to line the inside of pots. Please do not use our 900 series glazes on the same piece with our 700 series glazes. Due to significantly different expansion rates this combination can cause pots to crack.
In addition to the chip samples in our colour chart which show the result of applying 3 coats of each glaze on white bisque and firing to cone 05, please also look at the bell samples on our poster which show examples of some of the wonderful effects that can be created by layering these glazes. These bells were done by putting 2 light coats of one of the Low Stone glazes on the top half of the bell and then applying 2 normal coats of one of the other Low Stone glazes over the entire bell. We only had space to show a few of the numerous possible results that can be achieved this way.
All of these glazes are lead-free and dinnerware safe when fired correctly. 47 of the colours are AP non-toxic, but 16 of the colours (901,902,903,912,913,932,934,941,945,946,947,949,954,956,959,960) have Health Labels for use in the unfired state. This is due to the presence of copper oxide and/or nickel oxide exceeding the prescribed limits.
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