800-852-6832 | 5010 River Rd. Mt. Bethel, PA 18343

WMP-VR
Low Cost Standard Duty

Meets ASTM C1136, Type IV

FACING COMPOSITION DESCRIPTION VALUES (ENGLISH) VALUES (Metric)
White Film Polypropylene 12.5 lbs / 3000 ft2 20 g / m2
Adhesive Flame Resistant
Reinforcing Tri-directional Fiberglass/Polyester 5 / inch (MD)
4 / inch (XD)
20/ 100mm (MD)
16/ 100mm (XD)
Kraft Natural 11 lbs / 3000 ft2 18 g / m2
PHYSICAL PROPERTIES TEST METHOD VALUES (ENGLISH) VALUES (Metric)
Basis Weight Scale 17lbs / 1000 ft2 83 g/ m2
Permeance (Moisture Vapor) ASTM E96 Procedure A 0.09 perm (grains/hr.ft2.in Hg) 5.17 ng / N.s
Permeance (Air) ASTM E2178 ≤0.004 cfm/ft2 ≤0.02 l/s.m2
Bursting Strength ASTM D774 60 psi 4.2 kg / cm2
Puncture Resistance ASTM C1136 125 beach units 3.7 Joules
Tensile Strength ASTM C1136 40 lbs/inch width (MD) 30 lbs/inch width (XD) 7.0 kn / m (MD) 5.3 kn / m (XD)
Caliper / Thickness Micrometer 0.008 inch 203 micron
Accelerated Aging 30 Days @ 95% RH, 120°F (49°C) No Corrosion No Delamination No Corrosion No Delamination
Low Temperature Resistance ASTM D1790 -40°F (-40°C) Remains Flexible No Delamination Remains Flexible No Delamination
High Temperature Resistance 4 hours @ 240°F (116°C) Remains Flexible No Delamination Remains Flexible No Delamination
Water Immersion 24 hours @ 73°F (23°C) No Delamination No Delamination
Mold Resistance ASTM C665 / C1338 No Growth No Growth
Dimensional Stability ASTM D1204 0.25% 0.25%
Light Reflectance ASTM C523 85% 85%
Fire Testing ASTM E84 / UL 723 CAN ULC-S102M BS 476
Film Side Kraft Side Film Side Kraft Side
Flame Spread 10  15 15 15 Class 0 Surface
Smoke Developed 10 5 30 45

Physical Properties based upon statistical averages, Weight / Thickness +/- 10%

FM Classified C UL US