Refractory Alumina Foam

SIZAL-Cell® is a range of non-fibrous insulation products manufactured from alumina microspheres. Ultra-light, SIZAL-Cell® is designed for high-temperature applications up to 1800°C.
Ceramic foam board
The main component of the insulation is a microsphere made from alumina. An exclusive and innovative process allows the industrial production of this unique element. The internal structure of the cell is a honeycomb-like thread that ensures the mechanical quality of the insulation, whatever the temperature of use. A specific binder means the assembly is homogeneous - this particular construction is light and porous and, consequently, insulating and mechanically efficient.
Main properties
- Guaranteed use up to 1800°C.
- Effective in all atmospheres, including reducing or oxidising atmospheres.
- Low thermal conductivity
- Low density, ultra-light insulation, easy to use
- Long life, no shrinkage or distortion, no decrease in quality and performance over time.
- Excellent resistance to thermal shock. Suitable for repeated and rapid hot and cold cycles, allowing production to increase without premature wear to the furnace lining
- Good resistance to abrasion and burner gas flows.
- Stabilised chemical composition allowing a wide range of applications, with no pollution to the furnace atmosphere.
- Free from fibres and organic binders, and safe and environmentally friendly
- No carcinogenic classification in accordance with regulation EC No. 1907/2006 REACH.
Applications
- Insulation panels for industrial or laboratory installations
- Furnace linings (electric and gas)
- Furnace, burner or turbine components.
- Mechanical parts, part supports, and more.
- Repairs
Technical Specifications
Référence |
Unités |
1260-380 |
1430-380 |
1540-380 |
1650-420 |
1705-420 |
1750-700 |
Classification temperature |
°C |
1260 |
1430 |
1540 |
1650 |
1705 |
1700 |
Chemical composition (%) |
Al2O3 |
50.2 |
59.8 |
65.3 |
70.4 |
80.5 |
99.5 |
|
SiO2 |
46.4 |
38.1 |
32.1 |
28.5 |
17.8 |
< 0.3 |
|
Autre |
3.4 |
2.1 |
2.6 |
1.1 |
1.7 |
< 0.2 |
Mineral Phase |
|
Mullite + Corindon |
Mullite + Corindon |
Mullite + Corindon |
Mullite + Corindon |
Mullite + Corindon |
Alumina |
Continuous operating |
°C |
1160 |
1330 |
1440 |
1550 |
1605 |
1650 |
Short-duration |
°C |
1210 |
1380 |
1490 |
1600 |
1650 |
1750 |
Density |
kg/m3 |
380 |
380 |
380 |
420 |
420 |
700 |
Open porosity |
% |
88 |
87 |
86 |
86 |
87 |
83 |
Resistance to cold crushing |
MPa |
1.2 |
2.6 |
3.1 |
4.2 |
2.9 |
7 |
Resistance to cold bending |
MPa |
0.7 |
0.9 |
2 |
2.6 |
1.8 |
3 |
Permanent dimensional variation after 24 hours |
% |
±0.3 (1230°C) |
+/- 0.33 (1400°C) |
+/- 0.12 (1510°C) |
+/- 0.43 (1620°C) |
+/- 0.29 (1680°C) |
/ |
Thermal conductivity 200°C |
W/m.K |
0.13 |
0.15 |
0.2 |
0.18 |
0.17 |
/ |
400°C |
W/m.K |
0.14 |
0.17 |
0.21 |
0.21 |
0.19 |
/ |
600°C |
W/m.K |
0.19 |
0.19 |
0.22 |
0.24 |
0.21 |
/ |
800°C |
W/m.K |
0.2 |
0.22 |
0.24 |
0.26 |
0.25 |
0.68 |
1000°C |
W/m.K |
0.21 |
0.25 |
0.27 |
0.3 |
0.28 |
0.75 |
1200°C |
W/m.K |
/ |
0.28 |
0.3 |
0.33 |
0.31 |
0.80 |
Standard dimensions |
mm |
900 x 600 x 50 |
900 x 600 x 50 |
900 x 600 x 50 |
900 x 600 x 50 |
900 x 600 x 50 |
560 x 360 x 100 |