PROPERTY |
|
MINIMUM REQUIREMENT |
Tolerance on nominal thickness, %
Tensile Strength, min, psi (MPa)
Elongation, ultimate min, %
Tear Resistance, min, lbf/in (kN/m)
|
ASTM D 412
ASTM D 412
ASTM D 412
ASTM D 624 (Die C)
|
±10
1305 (9)
350
175 (30.6) |
Ozone Resistance
Condition after exposure to 100 pphm
ozone in air for 168 h @ 40 ºC
(specimen under 50% strain)
Brittleness Temperature, max, ºC
Resistance to Water Absorption
Change in mass, max, after 7 day
immersion @ 70 ºC, %
Water Vapor Permeability, max, perm-mils |
ASTM D 1149
ASTM D 746
ASTM D 471
ASTM E 96 (Proc B or BW)
|
No Cracks
-75 (-59)
4
2.0 |
Resistance to Discoloration
Coated with white Hypalon7 |
ASTM D 1148 |
No more discoloration than glass slide. |
Resistance to Heat Aging - Long Term
Properties after 4 weeks @ 116 ºC
Tensile Strength min, psi (Mpa)
Elongation, ultimate min, %
Tear Resistance min, lbf/in (kN/m)
Linear Dimensional Change, max, % |
ASTM D 573
ASTM D 412
ASTM D 412
ASTM D 624
ASTM D 1204 |
1200 (8.3)
225
150 (26.3)
±2 |
|
Note: These properties are tested after vulcanization of the flashing for 20 minutes at 160 Cº.
|
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