International Diamond Systems Cured EPDM Sheet

Physical Properties Test
Method
Results
Width, inches D751 -0/+2.0
Length, inches D751 -0/+6.0
Thickness D751 ± 10%
Tensile strength, minimum
P.S.I.
D412 Die C 1305
Elongation, ultimate minimum
%
D412 300
Tear resistance, minimum
lbs./inch
D624 Die C 150
Linear
dimensional change, maximum %
(168 hours @ 240°F)
D1204 ±
2
Brittleness point @ -49°F D2137 Does not
break
Ozone
resistance
(168 hrs./100PPHM/104°F/-40°C/50% ext.)
D1149 No
cracks @ 7x
magnification
Water absorption, maximum %
(168 hours. @ 157°F/70°C)
D471 +8/-2.0

 

Heat Aging (28 days @ 240°F)

Tensile strength, minimum
P.S.I.
Elongation, ultimate minimum %
Tear resistance, minimum lbs./inch

D573
D573
D573

1205
200
125

 

Functional Properties

Pin Holes >No holes,
comets, or fish eyes more than 1/3 depth of total thickness
Seam strength 2
inches/minimum crosshead speed
2 inches
minimum overlap
Seam peel
strength 2 inches/minimum crosshead speed
15 PLI minimum
Seam shear
strength 2 inches/minimum crosshead speed
Break must be
membrane, not seam 50 PLI minimum

 

*Note: Every International Diamond EPDM sheet is tested per the specifications shown. Those listed are minimum standards. Typical test results far exceed these values. Consult International Diamond Systems for further information and test results.