3R2500
Silica
Made of special glass fibers with a filament diameter of 6-9 mm, this silica mat represents a modern product generation that, in any aspect, meets with all stringent requirements as to temperature consistency and environmental health standards.
The fibers are formed mechanically without the use of chemical bonding agents. The 3R2500 keeps a very high chemical and physical stability up to 1832°F.
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Applications
Because of its low thermal conductivity it is the ideal raw material for the production of flexible insulating mats. It is easy to cut and is non-combustible. The 3R2500 can be used for the following applications : industrial ovens, chimneys, boilers, steel industry, gas exhaust systems, laboratories and fire protection.
Specifications
Technical Data
| Temperature | 1000°C (1832°F) |
|---|---|
| Thickness | 1/4", 1/2", 3/4" and 1" |
| Density | 8-10 pcf |
| Composition | SiO2: 95%, Al2O3, Na20: 1% |
| Shrinkage at 1000 °C / 4h | 8% |
| Loss of ignition (1000°C / 1h) | 12% |
| Combustibility | Non-combustible |
| Thermal Conductivity (W/m°K) | |
| Density - 8 lbs/ft3 | |
| 50°C (122°F) | 0.045 |
| 200°C (392°F) | 0.060 |
| 400°C (752°F) | 0.104 |
| 600°C (1112°F) | 0.172 |
| 800°C (1472°F) | 0.263 |
| 1000°C (1832°F) | 0.377 |
| Density - 10 lbs/ft3 | |
| 50°C (122°F) | 0.046 |
| 200°C (392°F) | 0.064 |
| 400°C (752°F) | 0.113 |
| 600°C (1112°F) | 0.186 |
| 800°C (1472°F) | 0.281 |
| 1000°C (1832°F) | 0.396 |
| Absorption coefficients | |
| 400 Hz | 0.14 |
| 500 Hz | 0.24 |
| 800Hz | 0.44 |
| 1000 Hz | 0.58 |
| 2000 Hz | 0.87 |
| 4000 Hz | 0.96 |
| 5000 Hz | 0.98 |
| 10 000 Hz | 0.94 |
N.B. The information presented may differ from practice. We recommend conducting tests according to the conditions of use. We accept no responsibility for results obtained by the application of this information or the safety and suitability of our products. The data is subject to certain variations without notice.
