Acoustic Foam – Polyurethane low density

PU acoustic foam generally used in industrial applications inside housings and enclosures. Can be face laminated or OEM cut parts.

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Description

Polyurethane Acoustic Foam

Standard polyurethane acoustic foam controls airborne noise by reducing the reflection from boundary surfaces, therefore reducing the overall noise level.
This foam is available in thicknesses of 12mm, 25mm and 50mm as standard with an optional self adhesive backing. Also available with self adhesive (SA) backing.
Also available in other custom thicknesses subject to 10 sheet minimum order P.O.A.

Technical Data
Colour Light grey
Size up to 2m x 1.2m
Thickness 12mm – 100mm
Density 27-30 kg/m3
Tensile strength 100 kN/m2
Flammability
FMVSS302 Self-extinguishing
BS 4735 (1971) Self-extinguishing
ASTM D1692 Self-extinguishing

 

Absorption Coefficients
Material/Hz 125 250 500 1k 2k 4k αw Class
12mm 0.05 0.10 0.20 0.35 0.45 0.65 0.30 D
25mm 0.10 0.25 0.45 0.70 0.85 0.90 0.45 D
50mm 0.20 0.45 0.80 0.95 0.90 1.00 0.70 C

We have also developed and tested some additional facing materials which can ‘tune’ or just add increased broadband absorption as shown below. These can be ideal for internal machine enclosures when space is limited but maximum absorption is needed especially at particular frequencies.

Please Note: This foam will fade and yellow, over time, with prolonged exposure to daylight. It is best used inside enclosures.