|
Property
|
Value
|
Test
Method
|
|
Thermal Conductivity
1" Thickness at 75° mean
35° mean
3 1/2" Thickness at 75° mean
|
.224 (4.5 R)
.212 (4.7 R)
.066 (15.3 R)
|
ASTM-C-177
|
|
Fire Safety
Flame Spread
Smoke Developed
|
5
50-100
|
ASTM-E-84-89a
|
|
Density, lbs./ft.3
|
.70
|
ASTM-D-1622
|
|
Shrinkage - normal,
percent
|
1.86
|
HUD-MB-74
|
|
Fire Wall Rating
|
4 Hrs.
|
ASTM-E-119-88
(Equivalent to UL901
and UL905)
|
|
Corrosion
Aluminum , Copper
Steel, Galvanized Steel
|
Less than
1g pitting
|
HUD-MB-74
|
|
Acoustic Properties
|
8" CMU wall
STC=52
12" CMU wall
STC=54
|
ASTM-E-90-97
|
