Kaolin code KS-271 is one of the codes related to Kobudkamer mine. This code with suitable temperature resistance and firing at low temperature is being used in brick production factories to produce refractory bricks in cream to light to dark chamotte colors.

SiO2:53.60

Al2O3: 22.06

Fe t : 2.10

MgO: 0.25

K2O:2.40

Na2O:0.85

CaO:0.20

TiO2:0.44

P2O5:0.33

SO3:0.50 

LOI : 16.36

Acid test :no reaction 

Coefficient of thermal expansion : 75

Reset mesh 230 : N.A.

Soil hardness : almost hard 

Color before cooking : white 

Color after cooking : chamotte yellow 

Furnace temperature : 1200C

Furance cycle : 57Min

Dry strenght : N.A.

Dry shrinkage : N.A.

Curing strenght : 41.30

Baking shrinkage : 7

Heat wave : 11.39

Water absorption : 12.2

slurry viscosity : 16

Slurry density :1.13