Roll out a slab of high fire clay and cut into 6x6cm squares.
Making ceramic test tiles.
The easiest way to make up your test glazes is to make a series of different ceramic tiles in the different types of clay you ll be working with.
Once they ve been through their first firing then you can test out your glazes on them.
Chances are you ll find one that makes sense with what you are making.
And to improve your results it helps to have test tiles that mimic the kind of work you make.
Once bisqued these dishes can hold any type of crushed material for your next firing.
Put a hole somewhere to hang your tiles on a wall board or to hang off the handle of the bucket.
General ideas regardless of the shape.
To make simple melt test tiles i use this easy technique.
Put some type of word.
It is generally a good idea to add texture to part of your test piece so you can see how the glaze will respond.
The clay will brought to the edge of this in the form of a bottomless cylinder.
After centering spread the clay out flat similar to a plate.
In this video an excerpt from his dvd understanding glazes.
For this test tile we are using a 15 diameter bat.
For any work on the wheel centering clay is the first step.