Flex MF/R 80 Plus Elvaloy KEE User Manual
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Flex Membrane International Corp. 2670 Leiscz’s Bridge Road, Suite 400, Leesport, PA 19533
Tel: (610) 916-9800 Fax: (610) 916-9801 www.FlexRoofingSystems.com
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PHYSICAL PROPERTIES
Property
Test Procedure
Specification
Color
White, Gray or Tan
Thickness
ASTM D751
.080”
Breaking Strength (lbf)
ASTM D751
298 x 278
Seam Strength (lbf)
ASTM D751
286
Tear Strength (lbf)
ASTM D751
89 x 109
Elongation
ASTM D751
35% x 34%
Heat Aging
ASTM D3045
> 90 %
Static Puncture Resistance
ASTM D5602
PASS
Dynamic Puncture Resistance
ASTM D5635
PASS
Low Temperature Bend
ASTM D2136
PASS (-40ºF)
Permeance
ASTM E96
.003 Perms
Dimensional Stability
ASTM D1204
0.3%
Wt. Change after Water Immersion ASTM D570
1.20%
Accelerated Weathering
ASTM G155
Pass
Fungi Resistance
ASTM G21
Pass
Solar Reflectivity
ASTM C1549 .82 (white)
Emissivity
ASTM C1371
.91 (white)
SRI
ASTM E1980
109 (white)
Flex Elvaloy® based membranes meet the requirements of ASTM D4434 standard specification for
poly (vinyl chloride) based sheet roofing.
WARRANTY
The Flex MF/R 80 Plus Elvaloy® Roofing Membrane may receive the manufacturer's standard
five (5) year or optional ten (10) year, fifteen (15) year, twenty (20) year, twenty-five (25) year or
thirty (30) year guarantee of watertightness.
Elvaloy® is a registered trademark of Dupont.