Home > Uncategorized > Lots of Engobe recipes –Nancy Gallagher

Lots of Engobe recipes –Nancy Gallagher

This morning’s research discovered these engobe recipes.>>>

 

CONE 5/6 RANGE

 

VCS Vitreous ^5/6 Engobe Base

34% Gerstley Borate

2% Custer Feldspar

20% EPK

20% Silica

5% Zircopax

19% Ball Clay

 

Mary Berringer’s ^5/6 Engobe Base

10% Frit 3124

15% Neph Sye

25% Tenn 10

25% EPK

25% Silica

 

 

DePerrot’s ^5/6 Engobe Base

30% EPK

30% KYOM4

15% Cornwall Stone

8% Silica

5% Zircopax

7% Talc

3% Whiting

5% Soda Ash

 

 

Loree ^5/6 Engobe Base

24% EPK

19% Silica

14% Frit 3124

24% KYOM4

14% Neph Sye

* 5% Borax

 

 

Wunderlich ^5/6 Engobe Base

40% EPK

30% Silica

20% G 200Feldspar

10% Ball Clay

 

 

 

Hopper’s ^5/6 Engobe Base

15% EPK

20% Ball Clay

10% Talc

10% Frit 3110

10% Neph Sye

20% Silica

* 5% Borax

10% Zircopax

 

 

MB Vitreous White ^5/6 Engobe

50% Frit 3124

13% EPK

11% XX Saggar

14% Silica

9% G 200

3% Whiting

ADD:

11% Tin Oxide

 

 

Transparent Vitreous ^5/6 Engobe

10% Silica 325

20% FRIT 3134

40% Red Art

30% Neph Sye or Kona F4

12% Red Iron Oxide

This is a transparent amber engobe.

 

 

MB Black Vitreous ^5/6 Engobe

23% Neph Sye

23% KYOM4

22% EPK

22% Silica

*10% Borax

ADD:

4.5% Copper Oxide

4.5% Red Iron Oxide

1.0% Cobalt Oxide

 

 

Wayne Bates ^6 Black engobe

30% 6600 Black Mason Stain

30% 3134 Ferro Frit

40% White ball clay

Berringer Ash ^5/6 Engobe

25% KYOM4

25% Cornwall Stone

20% Unwashed wood ash

15% Frit 3134

15% Talc

FOR WHITE ADD:

7.5% Tin Oxide

FOR FLESHY TAN ADD:

1.5% Nickel Oxide

8.0% Pink stain

 

Cone 10 recipes

 

Randy Johnson ^10 Flashing Engobe

10% EPK

50% Grolleg

10% Neumann’s fire clay

03% Nepheline Syenite

 

These two posts are a compilation of ENGOBE RECIPES in a wide range of cone firings. Most engobes (with the exception of vitreous ones) are applied to greenware in various stages of dryness and fire to a dry matte finish.

 

Vitreous engobes are combinations of clay and other materials that become tight enough on firing to become vitreous. They have very low shrinkage, mature to a dense coating over the clay body and are truly the half way point between clay and a glaze. Like a lot of commercial underglazes, they can be applied to either greenware or bisqueware.

 

 

ADDING COLORANTS:

The amount of a colorant to add is always given in percentages…

When a basic engobe recipe is given in parts, all ingredients should be combined and then weighed dry on a gram scale in order to compute the percentage of colorant to add. Multiply the percentage of each colorant ingredient called for by the total gram weight of the engobe dry base.

For instance, if your dry engobe base weighs 300 grams and you want to add 5% Cobalt Carbonate to color the engobe, multiply 300 by .05 (5%) to compute that 5% Cobalt Carbonate equals 15 grams. Then weigh out the 15 grams & add the colorant amount to the dry base ingredients. Then add these dry ingredients to water and blend to a thick creamy consistency.

Straining is usually not necessary but a good whisking makes for a creamy mix.

 

 

* Borax added to an engobe recipe creates a harder surface with is less apt to smear or powder off when dry.

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