EPK Clay

Description: EPK Kaolin is a unique, high quality, water washed, ceramic kaolin which offers very white fired color, unusually good forming characteristics and high green strength.  In glazes, EPK offers excellent suspension capabilities and uncommon cleanliness.

 

Typical Analysis

                 

Chemical Analysis:

SiO2  

45.73%

CaO

0.18

 

Al203 

37.36

Mgo

0.098

 

Fe2O3  

0.79

Na2O

0.059

 

TiO2  

0.37

K20

0.33

 

P205     

0.236

LOI

13.91

 

 

Mineral Content (X-Ray Diffraction):       

Kaolinite (Al 203, 2SiO2, 2H20) - 97%

Screen Residue(Water washed through screen):             

Pellet (Prill):   .339    +325 mesh

Airfloated:      .245    +325 mesh

Specific Surface Area (m2/g):                  

28.52 

Median Particle Size (Microns):               

1.36

Free Moisture:                                       

Pellet (Prill)  3.0%

Airfloated     1.0%

 

Ceramic Properties

 

pH (10% Solids-Wt.):                                             

5.8

Viscosity: 

10,000 CPS @ 35% solids (wt.)

Water of Plasticity:                                             

26.0%

Dry Modulus of Rapture

300 psi

Linear Dry Shrinkage:                                       

5.8%

Fired Shrinkage Cone 11: (1315oC)                    

11.6%

Absorption - Cone 11: (1315oC)                          

11.3%

Cation Exchange Capacity (Methylene Blue Index): 

4.5 meq./ 100 grams 

Fired Color (100% Clay, Cone 11):                      

95.1

 

Casting Properties

 

Drainage:

Excellent

Type of Cast:

              Plastic                       

Water Retention:

24.81%

 

 

 

Availablity:                                 Pellet (Prill) Bulk & One Ton Bag, Airfloated Bulk, 50lb. bags

Bulk Density:                              Loose - 32.4, Packed - 46.2

Shipping Point (Truck/Rail):       Edgar, Florida

 

 

The information and data contained herein are believed to be accurate, but the manufacturer makes no warranty with respect thereto and disclaims responsibility for reliance thereon.  This data relates only to the specific material described herein, and does not relate to use in connection with any other materials or in any process.

Edgar Minerals, Inc. makes no warranties, express or implied, concerning this product.  No warranty of fitness for any particular purpose is made and we assume no responsibility whatever for any use of this product.  This product should be used by properly trained personnel, and in compliance with applicable health and safety laws and regulations.

WARNING:The product contains free Silica (Quartz).  Repeated and prolonged inhalation of dust in excess of TLV-TWA may cause delayed lung injury (Silicosis).  Follow applicable OSHA, MSHA, or NIOSH standards for Crystalline Silica (Quartz), IARC has classified Crystalline Silica in Group 2A of Probable Carcinogens based on limited evidence for the carcinogenicity of Crystalline Silica to humans- The National Toxicology Program has listed crystalline silica (respirable) as a substance which may reasonably be anticipated to be a carcinogen.