Primo Pro R2505 Red Stoneware with Grog

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Primo Pro R2505 Red Stoneware with Grog R 2505 is a stoneware body. It is suitable for plastic forming methods.

Chamotte proportion: 25 %. Chamotte grain - size: 0 - 0.5 mm

Firing Colour red

Recommended Firing Temperature Range 1000 - 1200 ºC

Technical Data

UNFIRED

Moisture 19.5% plastic

Chemical Analysis

SiO2

 

TiO2

 

Al2O3

 

Fe2O3

 

CaO

 

MgO

 

K2O

 

Na2O

68.40%

 

1.23%

 

20.60%

 

6.40%

 

0.30%

 

0.50%

 

2.40%

 

0.20%

Loss of Ignition 4.5%

Wet to Dry Shrinkage 6.8% plastic properties

FIRED

Specimen Firing Temperature [ºC] 1100

Coefficient of Thermal Expansion [x10-6/°C]

20 - 400 ºC 7.0

20 - 500 ºC 7.5

20 - 600 ºC 8.9

Dry to Fired Shrinkage [%] 5.0

Water Absorption [%] 5.0

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