DAMTEC® 3D
Acoustic underlay for under floating screeds
DAMTEC® 3D is a rubber underlay for under floating screed, with an on one side profiled surface. Especially in commercial and industry buildings, e.g. supermarkets and storehouses, DAMTEC® 3D provides long service life and reliable impact sound reduction. DAMTEC® 3D is our dimpled alternative to conventional impact sound insulation under screed.
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Technical data:
Material:
High‐grade granules of recycled rubber with PU elastomer bonding agent
Colour:
black
Surface:
open, granular texture
Underside:
wave cut
Density:
500 - 600 kg/m³
Tolerances:
Length and width ± 1.5%, Thickness ± 1.0 mm
Dimensions:
Roll width: 1,250 mm
Thicknesses: approx. 17/8 mm
Roll length: 8,000 mm
Tensile strength:
approx. 0.3 N/mm² (ISO 1798)
Elongation at break:
approx. 40% (ISO 1798)
Temperature resistance:
-40° - 80°C
Fire resistance:
EFl
Dynamic stiffness:
17/8 approx. 15 MN/m³ (EN 29052)
Impact sound improvement:
(ISO 140‐8/ISO 717‐2)
ΔLw = 28 dB 17/8 one layer under 60 mm screed
ΔLw = 32 dB 17/8 two layers under 60 mm screed
Max. load:
0.1 N/mm² (EN 826)
