Hardness, Shore A
ASTM D 2240
45, minimum
points
Permeability
ASTM E 96
2.3, maximum
perms
Procedure E
0.50 mm thickness
Properties in Inch-Pound Units
Properties
ASTM Test
Value
Units
Elongation
ASTM D 412,
100, minimum
percentage
75 F, 50% relative
humidity
Tensile Strength
ASTM D 412, die C,
500, minimum
psi
75 F, 50% relative
humidity
Permanent Set
ASTM D 412
1.0, minimum
percentage
Change in
ASTM D 412
1.0 within
percentage
Elongation, Tensile
tolerance of
Strength, Permanent
test
Set after Heat Aging
26 weeks @ 150F
UV Exposure
ASTM D 822, 6000
No cracking
--
hours in atlas
checking, or
carbon arc, Type E
significant
weatherometer
discoloration
Water Absorption,
ASTM D 570
0.5, maximum
percentage by
168 hours, 75F
weight
Hardness, Shore A
ASTM D 2240
45, minimum
points
Permeability
ASTM E 96
2.3, maximum
perms
Procedure E
20 mil thickness
][2.2.3
Type CB Coating
Aromatic urethane elastomer, [one][two] component. Uncured urethane shall
have the following values when tested for specified properties in
accordance with specified test method:
Properties in Metric Units
Properties
ASTM Test
Value
Units
Solids Content
ASTM D 2697
73, minimum
% by volume
Solids Content
ASTM D 2697
81, minimum
% by weight
Flash Point
ASTM D 56 or
28, minimum
degrees C
ASTM D 93
Properties in Inch-Pound Units
SECTION 07570
Page 23
Previous Page
