Origin	China
Model Number	GRB-83
Brand Name	GOLDEN ROCK

Ball Clay

The under ball clay are high  in  plasticity, strengthï¼ÂŒviscosity and bonding nature. It is one of the important combination clay in the ceramic industry.

No. of Product  GRB-83

SiO₂  49% max.

Al₂O₃  34.5% min.

Fe₂O₃  0.85% max.

TiO₂  0.25 %  max.

Na₂O  0.04 %

K₂O  1.57 %

Particles (-2μm)40% min.

Calcined Brightness(1200℃)  83  min.

Ig Loss (1200℃) 13.4%

Shrinkage (1200℃) 8.7%

Water Absorption (1200℃) %      12.4

Dry strength  Kgf/cm2  46.0

Flow speed(s)  58

PH  6.1

Moisture Filter cake shape 30% max.

Packing   50kgs pp Bag

No. of Product  GRB-80

SiO₂  49% max.

Al₂O₃ 34% min.

Fe₂O₃  0.95% max.

TiO₂  0.25 % max.

Na₂O  0.12 %

K₂O   1.59%

Particles (-2μm) 37 % min.

Calcined Brightness(1200℃) 80 min.

Ig Loss (1200℃) 12.8%

Shrinkage (1200℃) 7.8 %

Water Absorption (1200℃)    12.9%

Dry strength  41.8 Kgf/cm2

Flow speed(s) 50

PH  6.1

Moisture Filter cake shape 30%  max.

Packing   50kgs pp Bag

No. of Product  GRB-77

SiO₂  54% max.

Al₂O₃  30.5% min.

Fe₂O₃  0.90% max.

TiO₂  0.35 %  max.

Na₂O  0.07 %

K₂O  1.53%

Particles (-2μm)35% min.

Calcined Brightness(1200℃)  77  min.

Ig Loss (1200℃) 12.2%

Shrinkage (1200℃) 7.4%

Water Absorption (1200℃) %      14.0

Dry strength  Kgf/cm2  42.5

Flow speed(s)  46

PH  6.1

Moisture Filter cake shape 30% max.

Packing   50kgs pp Bag

No. of Product  GRB-73

SiO₂  55% max.

Al₂O₃  30.0% min.

Fe₂O₃  0.95% max.

TiO₂  0.40 %  max.

Na₂O  0.09 %

K₂O  1.60 %

Particles (-2μm)37% min.

Calcined Brightness(1200℃)  73  min.

Ig Loss (1200℃) 12.4%

Shrinkage (1200℃) 7.3%

Water Absorption (1200℃) %      14.2

Dry strength  Kgf/cm2  61.0

Flow speed(s)  48

PH  6.1

Moisture Filter cake shape 30% max.

Packing   50kgs pp Bag