


Bona U350
Key benefits
- Decoupling and impact sound insulation in one
- Low installation height
- Bridges hairline cracks in the screed
- Easy to cut
Information
Elastic underlay for decoupling and impact sound insulation under engineered parquet
Bona U350 is a permanently elastic underlay that can be used for decoupling and impact sound insulation under engineered parquet. The special structure consisting of a mineral middle layer and fleece lamination on both sides, ensures a reduction of shear and tensile force between the parquet and the subfloor. Bona U350 also reduces walking noise and thus ensures pleasant living room acoustics. Bona U350 can also be used to bridge existing hairline cracks in the screed.
Base: Mineral fillers and PUR binder with fleece lamination on both sides Dimension: 750 x 500 mm (+/- 0,15 mm) = 0,375 m² Board thickness: 3 mm (+/- 0,15 mm) Basis weight: 3 Kg/m² Thermal insulation resistance: 0.01 m²K/W (according to DIN EN 16354:2019-01) Compressive strength: Up to 8 t/m² (acc. to DIN EN 826 (250 Pa, 0,5 mm) Impact sound improvement: Up to 18 dB
