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Absorber - AcoustiGuard ML |
AcoustiGuard™
Mineral Liner is a high quality, rigid, acoustic mineral
fiber board with a facing of tough, smooth, mat black, non-woven
glass. It is manufactured from flame attenuated fibers and bonded
with a thermosetting binder.
The ML board is available in black or cloth covered on special
order. It should be used when a premium appearance, superior acoustic
performance and tough surface finish is desired.
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APPLICATION
AND PRODUCT DATA
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USES: |
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Theatre
and Studio Walls & Ceilings Enclosure liner
Fan Plenums and Air Ducts
AcoustiGuard is easy to apply and can be cut with common
utility knives. For secure and permanet installations use mechanical
fastners or specified adhesives - available from Wilrep Ltd.
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Thickness:
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ML-58:
0.625 in. thick, ML-100: 1.0 in.
Also Available ML-200: 2.0 in.
Board Size: 24" wide x 48" (8 sq. ft.)
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Typical
Physical Properties:
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| Fire
Hazard Classification: (ULC, CAN4-5102, ASTM E84)
Flame spead not exceeding 25 and Smoke Developed not exceeding
50.
Smoke Opacity: (ASTM E662) Exceeds requirement
for optical opacity of smoke generated, as per Department of Transportation,
Urban Mass Transit Division.
Water Vapour Sorption: (ASTM C553) Not
greater than 0.1% by volume or 2.5% by weight.
Fungi and Bacteria Resistance: (ASTM C991, ASTM
C665) Does not breed or promote growth.
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Frequency
(Hz) |
Absorption
Coefficient |
| ML-58 |
ML-100 |
ML-200 |
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125 |
0.03 |
0.07 |
0.23 |
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250 |
0.14 |
0.30 |
0.80 |
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500 |
0.40 |
0.72 |
1.16 |
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1000 |
0.70 |
0.96 |
1.13 |
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2000 |
0.85 |
1.04 |
1.09 |
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4000 |
0.96 |
1.05 |
1.09 |
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NRC |
0.50 |
0.75 |
1.05 |
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Click
here for Technical Data Sheet - PDF Format
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