US 270NW is a nonwoven needlepunched geotextile made of 100% polypropylene staple filaments. This product can be used under riprap for erosion control; for separation in road and railroad applications; and will act as a cushion in geomembrane applications. US 270NW meets the following M.A.R.V. values except where noted:
| PROPERTY |
TEST METHOD |
ENGLISH |
METRIC |
| Weight - Typical |
ASTM D-5261 |
10 oz/sy |
339 g/sm |
| Tensile Strength |
ASTM D-4632 |
270 lbs |
1,201 N |
| Elongation @ Break |
ASTM D-4632 |
50% |
50% |
| Mullen Burst |
ASTM D-3786 |
500 psi |
3,447 kPa |
| Puncture Strength |
ASTM D-4833 |
155 lbs |
690 N |
| CBR Puncture |
ASTM D-6241 |
700 lbs |
3,115 N |
| Trapezoidal Tear |
ASTM D-4533 |
100 lbs |
444 N |
| Apparent Opening Size |
ASTM D-4751 |
100 US Sieve |
0.150 mm |
| Permittivity |
ASTM D-4491 |
1.20 Sec-1 |
1.20 Sec-1 |
| Water Flow Rate |
ASTM D-4491 |
80 g/min/sf |
3,251 l/min/sm |
| UV Resistance @ 500 Hours |
ASTM D-4355 |
70% |
70% |
| ROLL SIZE |
AREA |
WEIGHT |
| 12.5' x 360' |
500 sys |
320 lbs |
| 15' x 300' |
500 sys |
320 lbs |
Spec Interpretation
