L21 Sindanyo - Technical Data Sheet
L21 Sindanyo is green in colour to assist identification. Manufactured from ordinary portland cement blended with man made fibres and density fibres. Grade L23 is as above but with the addition of sodium silicate and grade L26 is as L21, but impregnated with a silicone resin.
Available in both full sheets and machined components.
Sheet size (mm): 1245 x 940
Thickness (mm): 3 - 75
Technical Specification:
| Test |
Method |
Units |
Result |
| Density |
- |
g/cc |
2 |
| Tensile Strength |
- |
MPa |
6 |
| Shear Strength |
- |
MPa |
20 |
| Flexural Strength |
- |
MPa |
20 |
| Impact Strength |
BS3479 |
KJ/m³ |
5 |
| Crushing Strength |
- |
MPa |
95 |
| Compression Yield |
BS3479 |
% |
3 |
| Water Absorption |
- |
% |
16 |
| Electrical Strength (normal to surface in air 90ºC x6mm) |
BS3479 |
MV/m |
1.70 |
| Electrical Strength (surface breakdown in air 90ºC) |
BS3479 |
kV |
>10 |
| Thermal Conductivity |
- |
W/m³K |
0.5 |
| Coefficient of linear expansion |
- |
x10(-6)/ºC |
15 |
| Carbon arc test (6mm thick) |
BS3479 |
secs |
120 |
| Spirit Burner Test |
BS3479 |
- |
No ignition |
| Max Continuous Operating Temperature |
- |
ºC |
230 |
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