Characteristic

·         Relatively thicker than Unifelt B

·         To be secured by concealed anchor

·         Can withstand temperature up to 2300^o F

·         Greater mechanical strength

·         Asbestos free

Application

·         High gas flow velocity furnace or duct lining

Classification temperature

1260^oC (2300^o F)

Specification

Average

Bulk density

kg / m³

> 115

> 140

130

160

Liner shrinkage

1100^oC x 24 hrs

%

< 2

1

Loss on ignition

%

< 3

1

Thermal conductivity

Kcal/mh^o   C (W/mK)

130kg/m³

ASTM C201

mean 400^oC

<  0.14 (0.16)

0.09 (0.10)

mean 600^oC

mean 800^oC

<  0.22 (0.25)

<  0.33 (0.40)

0.13 (0.15)

0.19 (0.22)

160kg/m³

mean 400^oC

<  0.13 (0.15)

0.08 (0.09)

mean 600^oC

mean 800^oC

<  0.20 (0.23)

<  0.29 (0.34)

0.12 (0.14)

0.17 (0.20)

Chemical composition %

Al₂O₃

>  44

47.1

Al₂O₃ + SiO₂

>  98

99.4

Available size

300 x 300 mm

thickness

150 mm

200 mm

250 mm

Dimensional

Tolerance

Length

300 mm

+ 20 mm

- 0 mm

Width

300 mm

+ 5 mm

- 3 mm

Thickness

250 mm

+ 5 mm

- 5 mm