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| | | METALÜRGICA MANLLEUENSE, SA nP&^V | | |
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| | | PHONOABSORBENT METAL COATINGS | | |
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| | | Phonoabsorbent materials used | | |
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| | | ABSORBENT VEIL High quality acoustic veil fixed on the panel by means of a thermo adhesive. This one avoids dust accumulation, absorbs humidity and increases acoustic impedance ofthe punched plate. If you ask it so, we can supply it to you in different colours, hiding the punching and improving the aesthetic appearance. | | |
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| | | Alfa Normal Incidence | | |
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| | | Alfa Normal Incidence | | |
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| | | E U a u E Q. n | | |
| | | E U S 0 u E Q. n | | |
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| | | Frequency [Hz] | | |
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| | | Rockwool Mineral wool composed ofvolcanic rockfibres obtained from basalt fusion. Inorganic and incombustible mineral, it contributes to the fire resistance of the constructive systems. A1 Fire reaction UNE-EN 13162:2002 Standard. The volcanic rockwool restrains the air movement driving the acoustic energy away. In this diagram you can see the acoustic absorption index of this material when mixed with a FONOMANN metal plate. | | |
| | | Melamin Foam Open cell foam, made with melamin resin. Thermoplastic from the amino plastic group. M1 Fire reaction UNE23727 Standard. The melamin has a filamentous structure which gives itselfan enviable feature as acoustic absorbent. It is specially recommended mixed with SOUNDMANN screens due to its exceptional features. | | |
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| | | Behaviour in front of fire The combination of metal panels with the absorbent elements used ensure stability and resistance in case of fire. These elements are not flammable when used together with metal panels. These elements have as well finishes that delay the flame, helping this way to have no combustibility. | | |
| | | Moreover, the chemical structure ofthe materials used as acoustic industrial absorbents ensure that toxic gases subjected to fire do not be given off. Features ofthe elements used ensure plates corrosion absence when in contact with them. | | |
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