<Acoustic Foam | Acoustic PU Foam | Anechoic Wedge Foam

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Envirotech is a leading Manufacturer of Acoustic Foam, Acoustic PU Foam & Anechoic Wedge/ pyramid foam Quality high sound absorption polyurethane foam. Having NRC of 0.8. This acoustic absorption foam is known for their fire retardant and sound absorption characteristics.

Envirotech provides superior quality high sound absorption polyurethane foam (PU Foam) weakens the sound waves hitting it and minimizes the transmission of noise having NRC (Noise Reduction Co-efficient) value of 0.8. This acoustic absorption foam is known for their fire retardancy and sound absorption characteristics.
These are widely used in hotel, ballroom, recording room, club, architectural decoration, industrial workshop, etc. This foam can be easily glued to any other material such as non-woven fabric, gypsum sheet, sun mica, glass fiber.

Envirotech Acoustic PU Foam available in plain sheets, Wedge and pyramid shape:-

  • Plain sheet size -1000mm x 2000mm and 25 / 50 mm thick sheets.
  • Wedge – 300 mm x 300mm / 600mmx 600mm and 50 , 100 , 200, 400, 600 ,900mm thickness
  • Pyramid – 300 mm x 300mm / 600mmx 600mm and 50 , 100 , 200, 400, 600 ,900mm thickness

Properties

  • Product : P.U. Foam
  • Foam Type : 32 FR
  • Colour: Grey
S.No Parameter Specified Value Test Method Observed Values
1. Density (kg/m3) 30 + 1 IS-7888 31
2. Tensile Strength (kg/cm2) >= .80 IS-7888 1.07
3. Elongation (%) >= 120 IS-7888 130
4. Hardness value (IFD) Kg/323 Cm2 @ 50% Compression 30 To 40 IS-7888 37.03
5. % Resilience >=30 IS-7888 34
6. F.R. Properties Comply to UL 94

TABLE I: Values of RISAC for PU Foam Grey at 1/3rd Octave Frequencies

Central Frequency (Hz) RISAC For PU Foam
125 0.08
160 0.08
200 0.11
250 0.14
315 0.13
400 0.34
500 0.41
630 0.50
800 0.65
1000 0.76
1250 0.76
1600 0.74
2000 0.76
2500 0.77
3150 0.81
4000 0.71
5000 0.74
6300 0.70
8000 0.73
NCR 0.52