HOARFROST CLAY BODY

Red sparkly firing ceramic body

Plastic body with 18-21% of water content

For hand-working, pressing and extrusion

CHEMICAL ANALYSIS

SiO2 – 60,20%

Al2O3 – 16,80%

Fe2O3 – 5,38%

CaO – 1,65%

MgO – 1,28%

Na2O – 0,52%

K2O – 3,12%

COOKING TEMPERATURE: 1000-1080 ºC

WATER ABSORPTION: 11,25-15,5%

COOKING CONTRACTION: 0,9-1,1%

MECHANICAL STRENGTH: 22,5N/mm2

DILATION COEFFICIENT: 68,5×10^-7ºC

COLOR: Bright red

DRYING CONTRACTION: 5,7-6,2%

CALCIMETRY: 6%

LOSS OF FIRE: 5,25%

QUANTITY OF MICA: 15%