2.14.2
Single Component Cold-Applied Silicone
Silicone sealant shall be self-leveling, non-acid curing, and meet the
following requirements.
TEST
TEST METHOD
REQUIREMENTS
Weight Loss
ASTM C 792 Modified
10 percent max.
(See Note 1)
Flow
ASTM C 639 (Type I)
Smooth and level
Extrusion Rate
ASTM C 603
30 sec. max.
Tack Free Time
ASTM C 679
5 hours max.
Hardness (Shore 00)
ASTM C 661
30 - 80
(See Note 2)
Tensile Stress at 150
ASTM D 412 (Die C)
207 kPa
Percent Elongation
(See Note 2)
Percent Elongation
ASTM D 412 (Die C)
700 min.
(See Note 2)
Accelerated Weathering
ASTM C 793
Pass 5000 hours
Bond and Movement
ASTM C 719
Pass 10 cycles at +50
Capability
percent movement (no
adhesion or cohesion
failure)
Flame Resistant
FS SS-S-200
Pass
NOTES:
1.
Percent weight loss of wet (uncured) sample after placing in
forced-draft oven maintained at 70 degrees at + 2 degrees C
for two hours.
2.
Specimen cured 21 days at 23 degrees + 2 degrees C and 50
50 percent.
ACCELERATED WEATHERING FACTORY TEST REPORT. For Accelerated Weathering
test, in lieu of testing of actual joint sealant to be used on the
project, a report of a factory test, performed within two years of
contract award, may be submitted.
TEST
TEST METHOD
REQUIREMENTS
Weight Loss
ASTM C 792 Modified
10 percent max.
(See Note 1)
Flow
ASTM C 639 (Type I)
Smooth and level
Extrusion Rate
ASTM C 603
30 sec. max.
Tack Free Time
ASTM C 679
5 hours max.
Hardness (Shore 00)
ASTM C 661
30 - 80
SECTION 16522N
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