US 20SF is a nonwoven, spunbonded, continuous filament, polypropylene geotextile offering the consistent quality expected of spunbond geotextiles. Primarily used in drainage applications, this product prevents soil fines from entering the system, extending drain life and performance. US 20SF meets the following M.A.R.V. values except where noted:
| PROPERTY |
TEST METHOD |
ENGLISH |
METRIC |
| Tensile Strength |
ASTM D-4632 |
60 lbs |
267 N |
| Elongation @ Break |
ASTM D-4632 |
50% |
50% |
| Mullen Burst |
ASTM D-3786 |
60 psi |
414 kPa |
| Puncture Strength |
ASTM D-4833 |
18 lbs |
80 N |
| Trapezoidal Tear |
ASTM D-4533 |
25 lbs |
111 N |
| Apparent Opening Size |
ASTM D-4751 |
30 US Sieve |
.595 mm |
| Permittivity |
ASTM D-4491 |
2.0 Sec-1 |
2.0 Sec-1 |
| Permeability |
ASTM D-4491 |
.07 cm/sec |
.07 cm/sec |
| Water Flow Rate |
ASTM D-4491 |
150 g/min/sf |
6,112 l/min/sm |
| UV Resistance @ 500 Hours |
ASTM D-4355 |
70% |
70% |
| ROLL SIZE |
AREA |
WEIGHT |
| 12.5' x 300' |
417 sys |
65 lbs |
Spec Interpretation