Vermiculite boards type SF-400, SF-600, SF-750
High-temperature insulation boards on the basis of delaminated vermiculite and inorganic binders. The material does not contain asbestos and organic substances. Vermiculite is a layer of aluminum-magnesium silicate that expands at fast heating, creating ultra light granulated product. Boards and fittings are formed by pressing with addition of binders.
Properties
- resistance to thermal shocks,
- low thermal conductivity,
- good electric resistance,
- easy mechanical treatment,
- stiffness and stability,
- non-flammable material of class A1.
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TYPE |
SF – 400 |
SF – 600 |
SF – 750 |
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Maximum temperature of use in °C |
1100 |
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Density in kg/m3 |
400 ± 5% |
600 ± 5% |
750 ± 5% |
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Compressive strength in N/mm2 |
1,5 |
4,0 |
6,0 |
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Thermal conductivity (W/mk) |
200°C |
0,14 |
0,16 |
0,18 |
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400°C |
0,16 |
0,18 |
0,20 |
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600°C |
0,18 |
0,20 |
0,21 |
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Shrinkage (900°C/12 h) in % |
< 2,0 |
< 2,0 |
< 2,0 |
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Thermal expansion (20-700 °C) in % |
0,90 |
0,90 |
0,90 |
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Format in mm |
1000 x 610 |
1000 x 610 |
1000 x 610 |
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Thickness in mm |
20 – 80 ± 0,20 |
20 – 50 ± 0,20 |
8 – 40 ± 0,20 |
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Colour |
golden – brown |
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forms milled according to the drawing of the recipient
