Instagram

Sunday, March 17, 2013

Happy St Paddy's day

Happy Saint Paddy's day for all who are Irish or wish they were. :-)

I came in a while ago to get my traditional corned beef dinner started, after some morning studio time.

Now that that's done and the aroma of corned beef is wafting through the house, I'll get something light for lunch and head back to the studio.

This morning, I weighed out a couple of small glaze batches of my new clear glaze, got one sieved and still have to do the other one. Then I want to test some oxide washes over the clear and the same base with 3% rutile.  Before I moved I discarded or gave away all my washes, so it's time to start over.

Here's a list of oxide washes I've accumulated and tested over the years. I used these with my cone ten reduction glazes, but many would work just as well over oxidation glazes.

When water amount isn't specified, just aim for a water color consistency. For lower fired usage, substitute gerstley borate, or frits like Ferro 3124, or Ferro 3134 for the feldspar or the powdered, clear celadon. 

OXIDE WASH RECIPES

#1 40 GRAMS ILLMENITE, 13 GRAMS KAOLIN 3/4 CUP WATER

#2 1T CHROME OXIDE, ½ T GERSTLEY BORATE 1 CUP WATER

#3 9 GRAMS RAW OCHRE, 2 GRAMS COBALT, ½ CUP WATER

#4 3T RED ART, 3T OM#4 BALL CLAY, 3OZ WATER

#5 10 GRAMS COPPER CARB, 1 GRAM RED IRON, 1tsp KAOLIN, 1tsp COLEMANITE, 1/4 CUP (APPROXIMATELY) WATER

#6 1 1/4 tsp COBALT CARB, ½ tsp CHROME OXIDE, 3 T ALBANY SLIP(CAN SUB ALBERTA SLIP), 4 OZ WATER

#7 100 GRAMS RED CLAY, 4 GRAMS COBALT OXIDE, 4 GRAMS MANGANESE DIOXIDE, PLUS WATER TO MAKE WATERCOLOR CONSISTENCY.

#8 50 GRAMS NEPHELINE SYENITE, 50 RED MULE CLAY + WATER.

#9 20 GRAMS CHROME OXIDE, 10 GRAMS BALL CLAY , 10 CUSTER SPAR, 20 SILICA, 20 FLUORSPAR, 2 CUPS WATER

#10 1 tsp NICKEL OXIDE, 2 tsp RED IRON OXIDE, 25 GRAMS POWDERED CLEAR CELADON, PLUS WATER.

#11 50 GRAMS RED IRON OXIDE, 50 COPPER CARB, 1/4 CUP WATER.

#12 CARDEW AQUAMARINE 80 GRAMS CHROME, 20 COBALT CARB, 20 RUTILE, PLUS WATER.

#13 10 ALBANY SLIP (OR ALBERTA SLIP), 1 COBALT OX., PLUS WATER, FOR BLUE BLACK.

#14 RED ART ALONE (CAN USE AS BUTTONS IF MIXED LIKE THICK SLIP)

#15 3tsp RED IRON, 1 CUP WATER, 1tsp CHINA CLAY

#16 30 GRAMS COLEMANITE, 20 RUTILE, 20 CLEAR POWDERED CELADON, 4OZ WATER.

#17 1 tsp COBALT CARB, 1/4 TSP CHROME OX, 1/4 C. WATER, 1/4 tsp POWDERED CLEAR CELADON

#18 1 T RED IRON OXIDE, 1 T RUTILE, 1 T POWDERED CLEAR CELADON (Or Frit 3124)

#19 DRY PORCELAIN BODY 50 GRAMS, RED IRON OX 30 GRAMS, COBALT OX. 20 GRAMS, PLUS WATER. (HATCHER)

#20 75 GRAMS RED CLAY, 25 IRON OXIDE, 1 CUP WATER.

#21 RED ART 25 GRAMS, TENNESSEE BALL CLAY 13, NEPH.SY. 7, RED IRON OX. 2. PLUS WATER SIEVE IN 150 MESH. FOR RED.

#22 SAME AS #21 EXCEPT SUBSTITUTE RED MULE FOR RED ART.

#23 BLUE TRAILING SLIP FOR BISQUE.
60 GRAMS GROLLEG, 11GRAMS TENNESSEE BALL CLAY, 9 GRAMS RED CLAY, 20 GRAMS CORNWALL STONE, COBALT OXIDE 1 GRAM, 1 GRAM COBALT OX. ADD WATER, SIEVE 150 MESH.

#24 BLACK UNDERGLAZE: 43 GRAMS BLACK IRON OX., 18 MANGANESE DIOXIDE, 15 COBALT OX., 15 NICKEL OXIDE, 9 CHROME OX. PLUS WATER.

#25 DAVID MORRIS BLUE PIGMENT - GOOD ON CHUN OR TIN GLAZE:
21.6 % POTSPAR, 27.2 WHITING, 6.4 CHINA CLAY, 2 BENTONITE, 8 NEPH. SY. , COBALT CARB. 0.7 PLUS WATER.

#26 ORANGE SLIP: 10 CUSTER SPAR, 70 OM#4 BALL CLAY, 20 FLINT, 20 RUTILE, PLUS WATER.

#27 15 GRAMS GERSTLEY BORATE, 30 WOLLASTONITE, 20 BARNARD CLAY, 35 0M#4 BALL CLAY, ADD: 3% RUTILE

#27A 20 GRAMS GERSTLEY BORATE, 30 WOLLASTONITE, 20 BARNARD CLAY, 30 OM#4 BALL CLAY. ADD: 3% RUTILE

#29 12.1 GRAMS SODA ASH, 22.6 BARIUM CARB, 15.6 GERSTLEY BORATE, 34.6 SILICA, 10 TIN OXIDE , 7.5 COPPER OX.,

#31 REPLICA COPPER UNDERGLAZE: 20 REDART, 66 WHITING, 14 COPPER OX., - GOOD OVER AND UNDER CLEAR FELDSPATIC GLAZE.

#38 100 GRAMS EPK, 4 COBALT OX., 1 YELLOW OCHRE, PLUS WATER.

#39 90 ALBANY SLIP (OR ALBERTA SLIP), 10 COBALT OX, PLUS WATER.

#40 GLICK RUST PLUM - 2T RED IRON OX, 1T POWDERED CELADON. PLUS WATER.
* CAN ALSO TRY SUBSTITUTING FRIT 3124 FOR THE CELADON.

#41 GLICK RUST GOLD - 10 tsp RED IRON OX, 5 TSP RUTILE, 3T POWDERED CLEAR CELADON, 2 CUPS WATER.

#42 GLICK GREEN, RED, MAUVE - 2T COPPER CARB, 1T POWDERED CLEAR CELADON, PLUS WATER.

#43 GLICK PURPLE RED - 10 tsp COPPER CARB, 1 tsp COBALT CARB, 5T POWDERED CLEAR CELADON, PLUS WATER.

#44 Dark Brown (w/reddish tone) - 10 grams Copper carbonate, 1 gram Red Iron Oxide, 1-2 tsp of Frit 3134 or clear, dry celadon base.

#47 Yellow Green - 1/2 Copper Carbonate, 1/2 Rutile (by weight) + water to make watercolor consistency.

#50 Gold: Rutile 50, Frit P54 or equivalent. 50 by weight + water to make watercolor consistency.

#51 Red Orange: 50 Rutile, 50 Red Iron Oxide, 50 Frit P54 or equivalent + water to make watercolor consistency. (can go pretty red on high calcium white glaze)

#59 Green: Chrome oxide 1 T, Gerstley borate or Frit 3134 (boron frit) 1 1/2 tsp + water  to make watercolor consistency.

#63 Pink or purplish brown: Manganese Dioxide 1tsp, 1/2 C water

#67 Red Underglaze: Red Clay 3 parts, Red Iron oxide 1 part + water to make a water color consistency. (for comparison, try  versions using  both weight  and   volume).

#71 Leach blue: Red Clay 10, Cobalt oxide 20, Red Iron oxide 30, Manganese Dioxide 40. + water to make a water color consistency.

#80 1/4 tsp Cobalt Carbonate, 3/4 tsp Frit 3124, 1/4 cup water. Light blue or lavender on a high magnesia glaze.

#83 Medium Green: 25 Cobalt Carbonate, 53 Rutile, 2 Chrome Oxide, 20 Gerstley Borate + water to make a water color consistency.

#86 Tan/Orange: 50 Rutile, 17 Titanium Dioxide,  33 Gerstley borate + water to make a water color consistency.

#87 Underglaze Blue: Cobalt oxide 30, Nickel Oxide 4, Manganese Dioxide 16, Grolleg 50 + water to make a water color consistency.

#89 Bright Blue: 70 Cobalt Carbonate, 20 Gerstley Borate, 10 Titanium Dioxide + water to make a water color consistency.

#91 Iron Yellow: 70 Red Iron Oxide, 30 Titanium Dioxide + water to make a watercolor consistency.

#105 Kawai Red (use under a limestone glaze) Black Copper Oxide 60, Zinc Oxide 28, Tin oxide 3, Hard ash (Rice Straw) 9. NOTE: Clean sweep available from cleaning maintenance suppliers is made from rice hull ash and may work as a suitable substitute.

3 comments:

  1. Thanks for posting. Any chance you can post tiles that show what the colors look like with the recipes?

    ReplyDelete
  2. I only posted some of them that I recently tested on my clear glaze at cone 04. Many were used on glazes I fired in reduction years ago. You just have to test them on your own glazes and at your own temperature and kiln atmosphere to find which work best for you.
    Since we moved, I don't know if I even kept some that I tested in reduction years ago. I'll have a look; but I'm not sure I even kept them since I knew I was going to be changing my work and would have to re-test them.

    ReplyDelete
  3. Can these oxides be brushed on at watery consistency and wiped off except in textural areas...and then covered with a celedon or clear ^ 10 glaze? We use the Coleman bulk glazes in our school studio...
    I'm looking for a way to add some interest to students' sculptures. I want to keep them away from the more opaque glazes for their sculptures so all texture is not lost.
    I was just doing an iron oxide wash, but we got sick of the darkness and dryness.
    What might the safest oxides be to use in a classroom situation?
    Thank you for any response or suggestions.
    Theresa

    ReplyDelete

COMMENTS WELCOME: