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Item # BGM 7-4B
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Item # BGM 7-4B, Barymat BGM 7-4B
Barymat BGM 7-4B consists of a limp, dense, mineral filled plastic barrier which was designed to provide maximum transmission loss for its weight. This layer is laminated to a one inch, semi-rigid fiberglass board which increases performance and provides thermal insulation. An abrasion resistant, clear polyester film protects the barrier layer from dirt, moisture and oily contaminants.
Performance Data
·
Applications and Product Data
·
Typical Physical Properties
·
Transmission Loss
Performance Data
Performance data is an extract from NRC - Ottawa report on tests according to ASTM E 90-90 with material adhered to 16 ga. steel.
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NOTICE:
Stated performance data is based on recognized testing methods. Product performance can be affected by field conditions and installation methods. Users of these products are responsible for determining suitability for their application and compliance with any legal provisions including those relating to health and safety.
Applications and Product Data
Uses
Engine Compartment Liner
Thermal Acoustic Decoupler
BARYMAT BGM 7-4B is easy to apply and can be cut with common utility knives. For secure and permanent installations use mechanical fasteners or specified adhesives - available from Firwin Corp.
Thickness
Approx. 1.25 in. - overall composite thickness
Standard Dimensions
Sheets:
48"wide X 72", untrimmed (24 sq.ft.)
CUSTOM TRIMMING AND DIE CUTTING CAN BE PROVIDED
Typical Physical Properties
Thermal Conductivity of Foam at 75°F (24°C)
ASTM C 518 - 0.24 Btu. in. / hr. ft.² ºF , 0.034 W/mºC
Barrier Colour
Black
Composite Weight
26 oz. per sq. ft.
Fiberglass Color
Yellow
Polyester Film Color
Clear
Transmission Loss
Frequency (Hz)
Transmission Loss (dB) BGM 7-4B
80
22
100
20
125
15
160
15
200
22
250
29
315
33
400
37
500
41
630
43
800
46
1000
48
1250
51
1600
52
2000
49
2500
48
3150
53
4000
56
5000
58
6300
59
STC
36
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