Acoustic Underlay
Impact Sound Insulation
Acoustic Underlay is a resilient recycled-rubber (SBR) layer installed over the concrete slab and beneath the final floor finish to reduce impact and airborne noise transmission between floors.
It is quick to install, resistant to compressive loads, and suitable under ceramic tiles, wood, vinyl and laminate finishes.
Features
Reduces impact noise (footsteps) and airborne noise
Made from recycled SBR rubber — eco-friendly
High resistance to compressive loads
Quick and easy to install over concrete slabs
Compatible with ceramic, wood, vinyl and laminate finishes
Wide service temperature range
Applications
Residential apartments, hotels, offices, hospitals, schools, and any multi-storey building where impact noise between floors must be controlled.
Specifications
Material | Recycled SBR Rubber |
|---|---|
Thickness | 3 mm / 5 mm |
Density | 700 kg/m³ |
Tensile Strength | 0.2 – 0.3 MPa |
Elongation at Break | 18 – 29 % |
Tear Strength | 3.1 – 3.6 kN/m |
Shore A Hardness | 56 |
Temperature Range | -25 °C to 105 °C |
STC (3 mm, ceramic) | 52 |
IIC (3 mm, ceramic) | 51 |
ΔIIC (3 mm, ceramic) | 20 |
ΔIIC (3 mm, vinyl) | 24 |
Standards | ASTM E90, E492, E2179 / ISO 10140-2, 10140-3 |
