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
- 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|
|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|