DAMTEC® estra 3D
Acoustic insulation dimple textured underlays under floating screed, cement screed and wood subfloors
DAMTEC® estra 3D 8/4 is the ideal rubber underlay under floating screed /concrete slab or underneath rigid floor elements on wooden subfloors, providing outstanding elasticity and extremely high resistance to compressive loads. It is equally well suited for applications in residential, office and commercial buildings. DAMTEC® estra 3D 8/4 is particularly quick and easy to install. It provides a wide range of benefits under screed or rigid floor elements including long service life and superb strength.
ETA - 13/0572
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Technical data:
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Material: |
Granules of recycled rubber with PU elastomer bonding agent |
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Colour: |
multi-coloured |
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Surface: |
granular texture |
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Underside: |
wave cut |
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Density: |
approx. 680 - 750 kg/m³ |
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Area weight: |
3.870 - 4.730 g/m² |
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Tolerances: |
Length and width ± 1,5%, Thickness ± 1,0 mm |
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Dimensions: |
Roll width: 1.250 mm Thickness: 8/4 mm Roll length: on request |
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Tensile strength: |
approx. 0,4 N/mm² (ISO 1798) |
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Elongation at break: |
ca. 50% (ISO 1798) |
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Temperature resistance: |
-30° to 80°C |
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Fire resistance: |
B2 (DIN 4102-1) E (ISO 11925/ISO 13501) |
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Heat transmission coefficient: |
0,05 m² K/W bei 6 mm (ISO 8302) |
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Dynamic stiffness: |
(EN 29052) 8/4 mm < 40 MN/m³ |
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Impact sound improvement: |
(ISO 140‐8/ISO 717‐2) ΔLw = 22 dB at 8/4 mm (under 50mm screed) |
