humidity
Permanent Set at
ASTM D 412
25, minimum
percentage
break
Tear Resistance
ASTM D 624, Die C
150, minimum
Pounds per
linear inch
UV Exposure
ASTM D 822,
No cracking,
--
ASTM G 26,
checkiing,
ASTM G 53,
loss of
6000 hours in
flexibility
atlas xenon or
or significant
carbon arc
discoloration
weatherometer, or
QUV
Water Absorption,
ASTM D 570
2.0, maximum
percentage by
168 hours, 75F
weight
Hardness, Shore A
ASTM D 2240
60, minimum
points
Permeability
ASTM E 96
1.0, maximum
perms
Procedure E
20 mil thickness
][2.2.4
Type CF Coating
Aliphatic urethane elastomer, [one][two] component, cured elastomer shall
have no urethane groups bonded directly to aromatic rings. Uncured
urethane shall have the following values when tested for specified
properties in accordance with specified test methods:
Properties in Metric Units
Properties
ASTM Test
Value
Units
Solids Content
ASTM D 2697
55, minimum
% by volume
Solids Content
ASTM D 2697
69, minimum
% by weight
Flash Point
ASTM D 56 or
22, minimum
degrees C
ASTM D 93
Properties in Inch-Pound Units
Properties
ASTM Test
Value
Units
Solids Content
ASTM D 2697
55, minimum
% by volume
Solids Content
ASTM D 2697
69, minimum
% by weight
Flash Point
ASTM D 56 or
71, minimum
degrees F
ASTM D 93
Cured aliphatic urethane elastomer shall have the following values when
tested for specified properties in accordance with specified test method:
SECTION 07570
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