Mixing pottery glazes takes knowledge.
How to mix oxides for ceramics.
The metallic and ceramic oxides are mixed up and heated to the point that they melt and fuse.
Whereas ceramic oxides are made from non metallic minerals that have been crushed or ground into a fine powder 1.
This process is essentially how frit is made in ceramics.
Bisqueware absorbs the color easily so the two materials work well together.
Knowledge of the components themselves and knowledge about how best to put them together.
Alumina ceramic is relatively inexpensive readily obtained and has metallization schemes compatible with the user friendly 94 to 97 compositions that can be commercially obtained.
Red iron oxide fe 2 0 3 is one of the most commonly used ceramic colorants.
Brush oxides on then apply glaze.
Stains and oxides can be very toxic so you must make sure not to have food or consumable liquids when you are working with them.
These are then quenched and ground down into a powder.
Aluminum oxide ceramic or alumina is the preferred nonmetal choice for many structural ceramic components and high voltage insulators.
To get more random blotchy colors don t mix too well.
A demonstration of how to use an oxide wash on pottery.
Be very careful when handling as you may smudge the oxide.
Red iron oxide can be layered fired watered down and used in many ways to add a finish to a piece of bisque pottery.
To get more uniform colors mix well.
Make some slip and add some oxides to create colors.
It discusses the importance of wiping back how to avoid uneven coverage and many other useful hints.
Brush oxide wash over an unfired glaze then fire.
Brush oxides on greenware bisque and or glaze.
Pick up some new ideas for how to decorate bisque pottery with red iron oxide by watching this video ceramic design tutorial.