Slips for cone 04-10

Oestrich White Slip    cone 04-10

Tile 6 Clay                               40        
OM4 Ball Clay                        30        
Silica                                         15        
Custer Feldspar                     15        

*Dense, white background for glazes in cone 03 electric.  White to toasty brown/orange in cone 6 soda.  Works well in a wide temp range in oxidation or reduction.*

Slip Trailing Slip   cone 04-10

-I use a higher temperature clay body than I am firing to (e.g. cone 10 porcelain for cone 6 slip trailing slip and for cone 04 slip trailing slip), almost always a “porcelain” to make a thick, slip trailing slip.

to mix:
-slake down clay body to a heavy cream-yogurt consistency
-add 1 tsp Soda Ash per 4 cups slip trailing slip, let sit 10 minutes, mix well, screen through at least 60-80 mesh sieve
-fill slip trailing bulb, Enjoy!

-for Green add 1 Tablespoon of Copper Carbonate per 1 cup slip
-for Blue  add 1 tsp of Cobalt Carbonate per 1 cup slip

Cone 04-03 Glazes

Ron Meyers White Liner  cone 04         

Ferro Frit 3124                    80
EPK                                          10
Silica 325 mesh                    10    
Bentonite                                  2    
Zircopax                                  10
 Rutile                                         1
Red Iron Oxide                        1

*Food Safe,  good liner, dense white, nice maiolica base*

Faux Lead Amber  cone 04   
Ferro Frit 3110                    31    
Gerstley Borate                    33
EPK                                          26
Silica 325 mesh                      5    
Wollastonite                            3
Strontium Carbonate           3
Bentonite                                  2
Red Iron Oxide                        6

*Deep, rich amber/honeylike glaze.  Food Safe, translucent*


JR Darby Green  cone 04  

Spodumene                             45    
Gerstley Borate                     36     
Silica                                         19    

Copper Carbonate                   2.5%


Nice clear base with copper added for a soft turquoise glaze.  Good in low fire soda and salt.  Food safe.

*For JR Darby Blue, add .5% Cobalt Carbonate to clear base without copper*

Runny Borax   cone 04
Borax                                         69    
F4 Soda Spar                           19    
Red Art                                      12    
Bentonite                                    2    
Tin Oxide                                  20    
Zinc Oxide                                   9    

*Do not sieve when mixing simply slake down, Not for Food Surfaces Soft Glaze crazy white to orange, shino like effects*

Pewter Black  cone 04
Gerstley Borate                       40
Light Rutile                              10
Nepheline Syenite                  10    
Copper Carbonate                   20    
Red Iron Oxide                         20    
Bentonite                                     2    

*Not Food Safe, Also Good in Raku Firing Black with green undertones*


CM Clear  cone 04   
Gerstley Borate                       55    
EPK                                             30    
Silica                                           15    

*Good clear, brushes well brushes better than dipping due to flocculation*

Lichen Glaze cone 04-6   
Frit 3110                                   50
Frit 3124                                   25
Gerstley Borate                          6    
EPK                                                7    
Silica 325 mesh                        10    
Lithium Carbonate                    3    
Bentonite                                      2    
Magnesium Carbonate           34
Copper Carbonate                       8
Red Iron Oxide                            3

*Not Food Safe Also Nice in Raku  Nice over shiny glazes Crawly, beaded surface. Works best layered over Faux Lead glazes, dry, flaky and sharp when by itself *



Pete Pinnell’s (modified) Easy-Peasy Terra Sigillata  (multiply the recipe by 3 to get around 3 gallons of sig)

Clay*                                      1500grams
Water                                           1 gallon            
Sodium silicate                         1 tablespoon            

*for juicy orange-red:  Newman Red Fire Clay
  for brown-red:  Redart
  for white to orange blushing:  XX Sagger
  for white to yellow blushing:  OM4 Ball Clay

1)    Slake clay into water and blend well.

2)    Add sodium silicate and blend well.

3)    let sit 20-72 hours (20 hours for ball clays, 3 days for Newman Red)

4)    pour off top layers until you get to thicker chunkier stuff

5)    You want to keep the top layers, should be thin like skim milk, this is your terra sig. You can toss the thick chunky stuff.  You can leave it uncovered and let the water evaporate off.  If brushing, 3 coats on bone dry work. If dipping, also on bone dry, 3 coats will give you a nice eggshell surface without burnishing.  

-add stains and oxides for different colored sigs, usually around 1 cup of sig to
 1 tsp -1 tablespoon of colorants.  Add colorants to the already decanted sig. 

Butter (White to Yellow) add 1 Tbsp Titanium Dioxide to 1C White Terra Sig

Blue add 1 tsp Cobalt Carbonate + 1 Tbsp Titanium Dioxide to 1C White Terra Sig