Question:
How do I apply glaze?
Bleu de Ginette (Ginette's blue)
Bleu de Ginette (Ginette's blue)
Cone 04
Hardwood ash(washed)35%
Custer spar 14%
Frit #3134 25%
E.P.kaolin 14%
Lithium carbonate 12%
Bentonite 2%
Ultrox 15%
Cobalt oxide 5%
Best Brush on Technique
The best way to apply brush on glazes is to apply three coats with a large free flowing brush. The first coat should be applied going up and down the piece, the second going accross the piece, and the third as the first. This technique gives the most even application.
Spraying
Glaze can also be applied by spraying. The pot is rotated in the spray booth as the spray is applied. Spraying is most effective for adding accents or shading. The glaze can be applied heavily to one area of the piece and feathered out to a light application elsewhere. Brushing isn't recommended for applying high-fire glazes. It's difficult to get the glaze thick enough. A brush is handy for touching up spots where the dry glaze has chipped off rims or to fill in small areas. Build up the glaze nice and thick, and rub off the excess after it dries.
apply glaze
It is best to apply glaze in a cross-hatch fashion to eliminate missing any areas.
Glaze on glaze
If there are certain areas that you do not want to glaze or you do not want colours to overlap, you may have difficulty if not applied properly. Many leave 1/8” –3/8” between colours if they do not want them to run together.
a lot of streaks or running of glaze
If, when you remove a piece of ware from the kiln, it has a lot of streaks or running of glaze to the point where it is dripping off the bottom of the piece, you have applied too much glaze.
Texture glazes in combination
Texture type glazes may be used in combination with other type glazes. It is possible to create a raised design over a satin glaze since it moves very little in firing.
Description
Glazes are a formulation of minerals, water and other chemicals.
Mottled blue ash glaze
Edouard's Bleu marbré cendré (Mottled blue ash glaze) Cone 4. Thank you to Edouard Bastarache for supplying this glaze recipie.
Nepheline/Syenite 25%
Hardwood ash(washed) 20%
Silica 20%
Ball clay 5%
Gerstley borate 30%
Bentonite 2%
Ultrox 15%
Cobalt oxide 5%
Translucent Clear Gloss
Translucent Clear Gloss: Cone 4 - 5 Oxidation
Ferro Frit 4508 60.0
Nephelene Syenite 20.0
Ball Clay 20.0
Tin Oxide 6.0
Coloured glazes
You cannot tell by looking at a jar of glaze what colour it will look like after being fired.
The firing process matures the components of a glaze to give you the end colour.
Once this is attained however, you can put food dyes into your glaze bottles, this burns out and you can see at a glance what glaze you have used.
create a third colour
It is possible to create a third colour by mixing two different coloured glazes together. It is advisable, however to fire a sample chip after mixing to be sure that you have the colour you want.
Glazing textures
To enhance textured surfaces, brush glaze on so it gets in all the cracks, then wipe off the top surface.
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| Guru Spotlight |
| Jolyn Wells-Moran |
