Foam absorbs airborne sound by dissipating the energy within the cellular network. Different densities and cell structures can absorb sounds at different frequencies. This can be improved by lamination of other substrates such as heavy layers.
Facilities are available for coating the foam with films, adhesives, barrier mats, lead linings, and spray coating with PVC.
Typical Applications:
- Lining of Anechoic Chambers
- Wall Tiles
- Ceiling Tiles
- Suspended Baffles
- Floor Underlay
- Microphone Windshields/booms
- Underfloor shock absorbers
- Speaker Grilles
- Ear Defenders/Pads
- Generator Housings
- HVAC
Foams used in Acoustical Applications
- Polyurethane foam is very good as a sound insulator, and is available in 2 main densities of 30Kg/m³ and 60Kg/m³.
- Reticulated foam. These types of foam are acoustically transparent (open cell) allowing free flow of sound through them.
- Impregnated PU foam for improved Fire Retardancy (UL94 HF1, BS476 Class O) .The increased mass through impregnation assists in damping out sound.
- Melamine foam (Basotect) is a flexible, low density (11 Kg/m³) open cell foam made from melamine resin, excellent for use where weight is an issue. Also very good temperature resistance
- Felted foam is special grade of foam which is a thermally compressed grade which creates both a higher density foam product, thus improving its acoustical behaviour.
- Thermoforming increases the density
Should you have a specific requirement or enquiry for these products or any other potential application, please give us a call for a friendly impartial discussion, or simply complete our online web form or email us at: [email protected] and we will respond immediately.