good quality pottery kiln application heat insulation ceramic fiber board normal size:   1200*600(thickness 30-100)   1000*600(thickness 30-100)   800*600mm(thickness 20-100mm)   600*400mm(thickness 15-100mm) customized sizes available type: soft board, semi-board, hard board   feature:  A)low thermal conductivity and heat capacity   B)excellent heat stability, thermal shock resistance & toughness   C)high compression strength   C )light weight, good stablity, elasticity and flexibility   D)precise size, good flatness   E)easy cutting, convenient installation & construction   F)excellent resistance to wind erosion   G)continous production, uniform distribution of fiber,        stable performance application  A)Refractory lining for industrial furnaces in walls, roofs,     doors, stacks  B)Construction chamber liners, boilers and heaters C)Transfer of molten aluminum and other non ferrous metals D)Expansion joint boards E)Backup insulation for brick and monolithic refractoriness F)Hot face layer for high velocity or abrasive furnace atmosphere G)Barrier against flame or heat technical standard 

type	Soft board	Semi-hard board	Hard board	Roll blanket
color	white	white	white	white
Density (kg/M3)	70-100	100-130	130-150	70-130
Linear shrinkage after heating(%) (24hour)	-4.0 (900-1000°C)	-4.0 (900-1000°C)	-4.0 (900-1100°C)	-4.0 (900-1000°C)
Thermal conductivity (W/m.k)	0.034 (20°C)	0.034 (20°C)	0.034 (20°C)	0.034 (20°C)
	0.098 (400°C)	0.09 (400°C)	0.09 (400°C)	0.096 (400°C)
	0.132 (600°C)	0.126 (600°C	0.126 (600°C	0.130 (600°C
	0.167 (800°C)	0.161 (800°C)	0.159 (800°C)	0.165 (800°C)
Slag content(%) ø>0.25mm	10.5	9.8	10.2	10.2
Fiber diameter um	2.0	2.2	2.2	2.2