Re-Roll Unsupported NTPEP

Unsupported NTPEP is a woven geotextile made up of polypropylene filaments. These filaments are woven to form a stable and durable network such that the filaments retain their relative position. It is non-biodegradable and resistant to most soil chemicals, acids, and alkali with a pH range of 3 to 12. Unsupported NTPEP is manufactured to meet or exceed the following minimum average roll values:

All values provided are intended for rapid comparison purposes, only. Please refer to a specific product’s Product Data Sheet (PDS) and the disclaimers therein for a detailed listing of all characteristics, associated definitions and values needed for structure design, specification compliance review and product submittal purposes. Please Download PDS for all information transfer, printing and submittal purposes.

Property Test Method English Metric


Grab Tensile
ASTM D4632 125 x 125 lbs 0.550 x 0.550 kN
ASTM D4632 15 x 15 % 15 x 15 %
UV Resistance
ASTM D4355 80 % @ 500 hrs 80 % @ 500 hrs
ASTM D4751 30 US Std. Sieve 0.60 mm
ASTM D4491 0.10 sec-1 0.10 sec-1
Flow Rate
ASTM D4491 8 gpm/ft2 325.6 Lpm/m2

  • 1   Maximum Average Roll Value