Post by Admin on Apr 6, 2015 15:18:12 GMT
Got White Powder, Now what do I do?
By Cherryl Meggs
There are so many white powders in our art that sometimes it is confusing as to what they are and how to use them.
With no label to tell you what it is, unless you test fire it first.
Do a series of tests, first mix it like base for gold or enamel. Fire 016 to 018 trying at different cones.
Then see if it is a matte paint or a white paint, chip off powder or flux. It could be any of the above if it is not marked.
Enamels or Raised Paste
1, Base For Gold: Most Base for Gold is a hard enamel.
2. Enamel – Can be soft or hard, do not use soft enamel on porcelain,
soft enamel must be used on pickard or bone china ( soft Glaze) or it will chip or scale off,
3. Raised Paste- Can be yellow or white, the lighter Raised Paste is a pale yellow.
4. Aufsetweiss a german name for relief white
5. Venetian Veil – Transparent if applied thinly, may add color or white to it .
6. Non-Ping - Transparent if applied thinly, may add color or white to it
Mix to a paste consistency with a drying Medium such as Copabia or Venetian Magic Medium( Cheri Holder Studio), and the Base holds together like pie dough, Thin with Turpentine, or D-Limonene a new product I have found on Amazon which is a great solvent for luster, gold, you name it,
Only thin what is needed to be used at one time, do not save the Base for Gold that has been thinned.
Store the rest in an airtight container.
I have found firing at 016 helps to keep these products form chipping off or scaling.
Chip Off Powder
You can mix this with water or medium, apply with a palette knife and fire o16.
Be careful it may cut as it takes the glaze with it, wear protective eye wear and chip over a trash can.
Flux
Many times clear glaze is just flux, and flux can lighten colors or change their colors completely. It appears very shiny when fired. Can be added to some colors in small amounts, such as dark blues to give them more shine. Fire 016-018
Matte White
Mix like regular paint but if fired too hot may loose it's matte appearance. Fire 017- 018
Can be used for the scratch technique but mix with Scratch oil or water based medium.
Sometimes called underlay which is tinted pink so you can see where you put it,
Covering White Enamel for Glass or My Special White For Glass
As I no longer can purchase Covering White Enamel for Glass I had to have my own made for me.
Both are applied the same way. It is used to make clear glass opaque.
I mix with a mixing medium and paint on with brush and then pad evenly. Fire 022
It should cover with one fire.
You can also mix with glass paint as you paint to create a more opaque look.
Tin Oxide
This can be a matting agent and help Raised paste adhere to china better, mix with the dry powder of the paste. 5 parts paste to 1 part Tin Oxide.
White China Paint
Mix like you normally do, can be used to lighten colors but test fire first as it may not mix well with reds or blue greens.
I am sure there may be more white powders out there, these are the ones that I have used.
By Cherryl Meggs
There are so many white powders in our art that sometimes it is confusing as to what they are and how to use them.
With no label to tell you what it is, unless you test fire it first.
Do a series of tests, first mix it like base for gold or enamel. Fire 016 to 018 trying at different cones.
Then see if it is a matte paint or a white paint, chip off powder or flux. It could be any of the above if it is not marked.
Enamels or Raised Paste
1, Base For Gold: Most Base for Gold is a hard enamel.
2. Enamel – Can be soft or hard, do not use soft enamel on porcelain,
soft enamel must be used on pickard or bone china ( soft Glaze) or it will chip or scale off,
3. Raised Paste- Can be yellow or white, the lighter Raised Paste is a pale yellow.
4. Aufsetweiss a german name for relief white
5. Venetian Veil – Transparent if applied thinly, may add color or white to it .
6. Non-Ping - Transparent if applied thinly, may add color or white to it
Mix to a paste consistency with a drying Medium such as Copabia or Venetian Magic Medium( Cheri Holder Studio), and the Base holds together like pie dough, Thin with Turpentine, or D-Limonene a new product I have found on Amazon which is a great solvent for luster, gold, you name it,
Only thin what is needed to be used at one time, do not save the Base for Gold that has been thinned.
Store the rest in an airtight container.
I have found firing at 016 helps to keep these products form chipping off or scaling.
Chip Off Powder
You can mix this with water or medium, apply with a palette knife and fire o16.
Be careful it may cut as it takes the glaze with it, wear protective eye wear and chip over a trash can.
Flux
Many times clear glaze is just flux, and flux can lighten colors or change their colors completely. It appears very shiny when fired. Can be added to some colors in small amounts, such as dark blues to give them more shine. Fire 016-018
Matte White
Mix like regular paint but if fired too hot may loose it's matte appearance. Fire 017- 018
Can be used for the scratch technique but mix with Scratch oil or water based medium.
Sometimes called underlay which is tinted pink so you can see where you put it,
Covering White Enamel for Glass or My Special White For Glass
As I no longer can purchase Covering White Enamel for Glass I had to have my own made for me.
Both are applied the same way. It is used to make clear glass opaque.
I mix with a mixing medium and paint on with brush and then pad evenly. Fire 022
It should cover with one fire.
You can also mix with glass paint as you paint to create a more opaque look.
Tin Oxide
This can be a matting agent and help Raised paste adhere to china better, mix with the dry powder of the paste. 5 parts paste to 1 part Tin Oxide.
White China Paint
Mix like you normally do, can be used to lighten colors but test fire first as it may not mix well with reds or blue greens.
I am sure there may be more white powders out there, these are the ones that I have used.