| Manufacturer | Acousti Products |
| Product name | AcoustiPack Multi-layer 2L4 |
| Product code | APML-2L4 |
| Colour | Dark grey/black |
| Composition | Dual-layer acoustic composite |
| Installation method | Self-adhesive backing |
| Thickness | 3.8mm |
| Dimensions | 457 x 431 mm (17 x 18 inches) |
| Total sheet area | 0.197m² (2.13 ft²) |
| Weight | 398g (14 oz) |
| Material weight per unit area | 2.07 kg/m² (0.42 lb/ft²) ±10% |
| Normal operating temperature | 0°C-93°C (32°F-200°F) |
| Flammability certification | UL94-V0 (UKAS Accredited) |
| RoHS certified | Yes |
| Packaging | Bulk OEM |
| Warranty | 24 months |
