Flex MF/R 72 PVC - Manual (Page 2)

Flex Membrane International Corp. 2670 Leiscz’s Bridge Road, Suite 400, Leesport, PA 19533
Tel: (610) 916-9720 Fax: (610) 916-9721 www.FlexRoofingSystems.com
Page 2
PHYSICAL PROPERTIES
Property
Test Procedure Specification
Color White , Gray, Tan
Thickness ASTM D751 .072” nominal
Roll Size 60” x 80’
78” x 80’
120” x 80’
Breaking Strength ASTM D751 256 x 242
(minimum, lbf/in.)
Seam Strength
ASTM D751 297 lbf
Elongation @ Break ASTM D751 57% x 54%
Heat Aging ASTM D3045 >90%
Tear Strength min. lbf. ASTM D751 99 x 70
Low Temperature Bend ASTM D2136 PASS (-40ºF)
Static Puncture Resistance ASTM D5602 PASS @ 33 lbs.
Dynamic Puncture Resistance ASTM D5635 PASS @ 20 J
Dimensional Change ASTM D-1204 0.25%
(maximum %) (@ 176º F, 6 hours)
Water Immersion ASTM D-570 1.96%
Accelerated Weathering ASTM G-155 PASS
Solar Reflectivity ASTM C1549 .82 (white)
Emissivity ASTM C1371 .91 (white)
SRI ASTM E1980 109
Flex MF/R PVC membrane is thermoplastic in nature and exceeds the requirements of ASTM D4434
standard specification for poly (vinyl chloride) sheet roofing.
WARRANTY
The Flex MF/R 72 PVC Roofing Membrane may receive the manufacturer's standard five (5) year, ten
(10) year, fifteen (15) year or twenty (20) year guarantee of watertightness.