Helmer Kaolin Formulas

HELMER KAOLIN

Prepared by: Michael Wendt

Title: Owner

Wendt Pottery

2729 Clearwater Avenue

Lewiston, Idaho 83501-3234

Phones: 1-208-746-3724 1-800-554-3724 fax 1-208-746-3724

e-mail wendtpot@lewiston.com web page http://wendtpottery.com

Body Formula for cone 10 white stoneware

Helmer  30 mesh         100

Custer Feldspar             75

Nepheline Syenite          25

125 mesh sand              35

200 mesh silica              25

Body Formula for cone 10 white Porcelain

Helmer Air Float          143

O M 4 Ball Clay               7

Custer Feldspar              38

Nepheline Syenite           38                    

200 mesh silica               75

Blend 0.75 lbs VeeGum T with 4 gallons of warm water and let sit over night

Blend 16 oz DR 10 flocculant with 4 gallons of water and add this to the mix

before adding the VeeGum T mixture.

Add more water as required to make the mixture suitable for your purpose.

(to make a lower cone body, replace some of the spar with Neph Sye)

Cone 10 White mat

Helmer                        43.5

Dolomite                    26.3

Custerspar                 22.5

200 mesh silica          7.7

for white add 10% Superpax, for tan add 10% Superpax + 5% Titanium Dioxide to speckle, add any local screened scoria type rock screened 35 mesh... test, test, test!