US 90NW is a nonwoven needlepunched geotextile made of 100% polypropylene staple filaments. Primarily used in drainage applications, this product prevents soil fines from entering the system extending drain life and performance. US 90NW can also be used in lightweight separation applications. US 90NW meets the following M.A.R.V. values except where noted:
| PROPERTY |
TEST METHOD |
ENGLISH |
METRIC |
| Weight - Typical |
ASTM D-5261 |
3.5 oz/sy |
119 g/sm |
| Tensile Strength |
ASTM D-4632 |
90 lbs |
401 N |
| Elongation @ Break |
ASTM D-4632 |
50% |
50% |
| Mullen Burst |
ASTM D-3786 |
185 psi |
1,275 kPa |
| Puncture Strength |
ASTM D-4833 |
55 lbs |
245 N |
| CBR Puncture |
ASTM D-6241 |
265 lbs |
1,179 N |
| Trapezoidal Tear |
ASTM D-4533 |
40 lbs |
178 N |
| Apparent Opening Size |
ASTM D-4751 |
50 US Sieve |
0.30 mm |
| Permittivity |
ASTM D-4491 |
2.00 Sec-1 |
2.00 Sec-1 |
| Water Flow Rate |
ASTM D-4491 |
150 g/min/sf |
6,095 l/min/sm |
| UV Resistance @ 500 Hours |
ASTM D-4355 |
70% |
70% |
| ROLL SIZE |
AREA |
WEIGHT |
| 12.5' x 360' |
500 sys |
130 lbs |
| 15' x 360' |
600 sys |
155 lbs |
Spec Interpretation