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Acoustic mat
The purpose is to use the sound dampening properties of rubber powder or granulates to manufacture acoustic mats against impact sounds.
Several technologies can be used to produce acoustic mats from rubber powder or granulates:
- Deposition on a sheet using a binder (video, Isolgomma)
- Compression in a mould with a binder, usually polyurethane
- Molding in the presence of sulphur
| Manufacturer | Kraiburg | BSW | Isolgomma | Wattelez |
|---|---|---|---|---|
| Reference | Damtec Estra | Regupol 8010 | Roll | Fenix 19 |
| Thickness (mm) | 4-8 | 3-6 | 5-10 | 3 |
| Material | Granules of recycled rubber with PUR elastomer bonding agent | Rubber PUR | Rubber - PUR on a synthetic sheet | Rubber - latex binder on a synthetic sheet |
| ΔLw (dB) | 19-21 | 18-24 | 19-23 | 19 |
| Specific Weight (kg/m3) | 680-750 | 700 | 265-335 | 800 |
| Tensile Strength (N/mm2) | 0.4 | 0.6 | - | - |
| Dynamic stiffness (MN/m3) | - | - | 33-50 | 20 |
| Elongation at Break (%) | 50 | 55 | - | 120 |
| Temperature Stability | ‐30 to +80°C | -40 to +110°C | - | - |
| Thermal Conductivity (W/m.K) | 0.12 | 0.12 | 0.099 | - |
| Reaction to Fire | B2 (DIN 4102-1) E (ISO 11925/ISO 13501) |
B2 (DIN 4102-1) | F (2000/147/CE) | - |
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