We are engaged in offering an extensive range of china clay lumps. Our china clay lumps are available in various grade such as glossy clay 88L, glossy clay 90L and glossy clay 92L. These china clay lumps are made from the weathering or hydrothermal alteration of feldspathic rocks.

The specifications of china clay lumps are given in the table:

PARAMETER (PHYSICAL / CHEMICAL)	CHINA CLAY (HYDROUS)
	LUMPS
GRADE	GLOSSY CLAY – 92L	GLOSSY CLAY – 90L	GLOSSY CLAY – 88L
Application	Vitrified Tiles	Vitrified Tiles / Glaze Tiles	Vitrified Tiles / Glaze Tiles
Material In Form	Lumps / Granules	Lumps / Granules	Lumps / Granules
Brightness (ISO)	82 ± 2	76 ± 2	75 ± 1
After Fired Brightness (%) At 1200°C / 1HRS	92 ± 2	90 ± 1	88 ± 2
After Fired Color Shade	Pure White	White	Creamish White
Moisture	< 5 %	< 5 %	5 TO 7 %
Ph (OF 10% Solution)	6 to 8	6 to 8	6 to 8
Residue (325#) Calibrated Sieve	< 1 %	< 1.5 %	< 2 %
Wet To Dry Shrinkage	3 – 4	3 – 4	3 – 4
Wet To Fired Shrinkage	12 – 14	12 – 14	12 – 14
Green M.O.R (KG/CM2)	5 – 6	5 – 6	5 – 6
FiredM.O.R (KG/CM2)	55 – 57	55 – 57	55 – 57
Slaking Nature	Very Good	Very Good	Very Good
Plasticity	Very Good	Very Good	Very Good
SiO2	44 – 46	44 – 46	44 – 46
Al2O3	36 – 38	36 – 38	36 – 38
TiO2	1	1	1
Fe2O3	0.8	0.8	0.8
MgO	0.2	0.2	0.2
CaO	0.3	0.3	0.3
K2O	0.1	0.1	0.1
Na2O	0.1	0.1	0.1
LOI	< 14%	< 14%	< 14%