Test Tiles Revealed

Yea!! God is good! I am very pleased with the overall results of the test tiles. Given the countless variables that contribute to the science of pottery, many of the colors turned out beautiful.
Some of those variables that I may have experienced yesterday may include the fact that I am having trouble adjusting my kiln sitter after I installed a new one. The cone is suppose to be at a 90 degree angle but mine are coming out extremely "U" shaped which could cause overfiring. This is definitely different than before. Another variable could be that some of the glazes arrived extremely cold almost frozen. I have never experienced that before so I have to reason that it could change the chemical formula. Most definitely the clay bodies are a variable. If you don't fire the same clay body as the sample given by the manufacturer then expect variations in color.

Needless to say, whatever the variables may or may not have been, there are always surprises when you open a kiln of test glazes. For example, one of the pink glazes is beautiful on white porcelain, as shown in the below picture as the pink rectangle) but not very attractive on stoneware clay. Some glazes that are suppose to be transparent are too opaque for textures but would still work for a smooth surface. An example would be the pink diamond in the outside lower left hand corner of picture below.

The above picture depicts some of the new glaze colors for 2010. The are on a white porcelain clay color.